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Question
Find the fourth proportional of `1/3, 2/5 "and" 8.4`
Solution
Fourth proportional of `1/3, 2/5 "and" 8.4`
`= (2/5 xx 8.4)/(1/3) = 2/5 xx 8.4 xx 3/1`
`= (2 xx 84 xx 3)/(5 xx 10 xx 1) = 252/25 = 10.08`
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