List the proportions according to the following conditions, and the ratio of the solution proportion 45 and X is equal to the ratio of 25 and 8. The two external terms are 24 and 18, and the two internal terms are x and 36

List the proportions according to the following conditions, and the ratio of the solution proportion 45 and X is equal to the ratio of 25 and 8. The two external terms are 24 and 18, and the two internal terms are x and 36

45: x = 25:8, so 25X = 360, x = 14.4
24 × 18 = 36x, so x = 12

The ratio of X to 18 is equal to the ratio of 3 to 12. The ratio of 2.4.8 to 3.6 is equal to the ratio of X to 1.5
3. The ratio of the smallest prime to the largest one digit is equal to the ratio of 13 to X
Add a number to 6.3.8 to form a proportion. What is the possible number? Please select one of the numbers and write all the proportions

1. The ratio of X to 18 is equal to the ratio of 3 to 12
x:18=3:12
18*3=12x
x=9/2=4.5
The ratio of 2.4.8 to 3.6 is equal to the ratio of X to 1.5
4.8:3.6=x:1.5
3.6x=4.8*1.5
x=2
3. The ratio of the smallest prime to the largest one digit is equal to the ratio of 13 to X
2:9=13:x
2x=13*9
x=117/2=58.5
Add a number to 6.3.8 to form a proportion. What is the possible number? Please choose one of the numbers and write all the proportions
6:3=8:4
All proportions of composition:
6:3=8:4 6:8=3:4
4:3=8:6 4:8=3:6
3:6=4:8 3:4=6:8
8:6=4:3 8:4=6:3

The solution ratio is: 24: x = 3:8 3 / 4:5 / 12 = x: 2 / 3 0.6 / 16 = 1.5: X
24：X=3:8
3/4:5/12=X:2/3
0.6/16=1.5:X

3x=24*8 x=24*8/3=64
3/4*2/3=5/12x x=1/2*12/5=6/5
0.6x=1.5*16 x=1.5*16/0.6=40