If a is 4:3 to B and B is 7:5 to C, what is a: B: C

If a is 4:3 to B and B is 7:5 to C, what is a: B: C


The solution is a: B = 4:3
A: B = 28:21
And B: C = 7:5
That is, B: C = 21:15
That is, a: B: C = 28:21:15



A * 4 = b * 5 = C * 7, then how much is C equal to a
How did it come from


4a=7c
Know from the title
To get C / A, divide a to the right of the equation to get 4 = 7C / A
There is a constant 7 on the right side of the equation
So divide 7 to the left of the equation
We get C / a = 4 / 7

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