if 5a = 13 B = 7c find the value of A : B : c
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5a = 13b = 7c
Express a in term of b:
5a = 13 b
a = 13/5 b
Express c in term of b:
7c = 13b
c = 13/7 b
Express the ratio of a : b : c in term of bs:
a : b : c = 13/5 b : b : 13/7 b
divide by b through:
a : b : c = 13/5 : 1 : 13/7
Multiply by 35:
a : b : c = 19 : 35 : 65
Answer: The ratio is 19 : 35 : 65
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