if U:V is 4:7, V:W is 9:7, if U=72, what's the value of W?

Question

Answer 1

v is common in both, so make sure to equal the ratio of v in both
U:V = (4:7) x 9 = 36:63 V:W = (9:7) x 7 = 63:49
Now U is 72 that means 36x = 72, x=2, therefore W is 98

Answer 2

v is common in both, so make sure to equal the ratio of v in both
U:V = (4:7) x 9 = 36:63 V:W = (9:7) x 7 = 63:49
Now U is 72 that means 36x = 72, x=2, therefore W is 98

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if U:V is 4:7, V:W is 9:7, if U=72, what's the value of W?