2, 1 and 2.2 respectively.
Q1: The 1°, 3rd and 4ch terms of a proportion are
Find the 2nd term.
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We know that,
four numbers are said to be in proportion if the product of means = product of extremes.
Let the third proportion be x.
=> 32:112::x:217
=> 32×217=112×x
=> x=62
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