Question

find the value of a in the proportion 2/5:a::3/7:4/9
solution 2/5:a/1::3/7:4/7
using product of mean = Product of extreme
2/5×4/9=a/1×3/7
2/4×4/9×7/3=a=56/135​

Answer 1

Answer:

gbbboooooi5etsmj dgfngojgagggjufvdypshjjkOookmkaohamapXxttsbz yhn8vvjnw0dxjzu200qz592f65273384900oootrrurooodfvyidppajxcvhjxjCvjczmnzx