What's the fourth proportional of 0.2, 0.5, 6​

15

Step-by-step explanation:

a:b::c:d

a/b=c/d (eq 1)

let a=0.2, b=0.5, c=6, d=x

Not put values in eq 1

0.2/0.5 = 6/a

By cross multiplication we get:

0.2xa = 6x0.5

0.2a = 3

Dividing by 0.2 on both sides we get

0.2a/0.2 = 3/0.2

a = 15

Therefore The fourth proportional is 15

2 5/8 is the final answer! : )

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step-by-step explanation: