Question
If 'R' is the prime number 3, then find the fourth proportion of (R + 2), (R - 1) and (R + 7).
Solution
'R' = 3
So, the numbers are 5, 2 and 10.
Let fourth proportion be 'm'.
So, 5m = 2 × 10
Or, 5m = 20
Or, 'm' = 4
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