The fourth proportional to 0.2, 0.12 and 0.3 is?

Question

Accepted Answer

Let 0.2 : 0.12 : : 0.3 : N ∵ 0.2 x N = 0.12 x 0.3 ∴ N = (0.12 x 0.3) / 0.2 = 0.18

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