Write the ratio of two ratios equal to 1.5 and make up the ratio

Write the ratio of two ratios equal to 1.5 and make up the ratio

3：2 =1.5 6：4=1.5
3：2=6：4

Write the ratio of two ratios equal to 0.6, and form the ratio! It's due tomorrow,

The ratio is 0.6, so the fraction is 3 / 5. As long as the numerator and denominator are expanded by the same multiple, they are all equal ratios
Two ratios equal to each other can form a ratio
3/5=6/10=9/15=12/20
3: 5 = 6:10, 9:15 = 12:20, etc

How to solve the equation of ratio: the ratio of 6 to 10 equals the ratio of 15 to x

It's used for comparison
6.10=15.*
6 * = 15 times 10
*=6 points 15 times 10
*=25