Question

Elevate a in the following

2.1:6.2::a:12.4


please answer my brother and sister​

Answer 1

Answer:

(6.2)a = 2.1 × 12.4

a = 4.2

Answer 2

$a = \frac{ 2.1 \times 12.4}{6.2}$

$a = \frac{21 \times 124 \times 10}{10 \times 10 \times 62}$

$a = \frac{21}{5} \\ \\ a = \frac{ 42}{10} \\ \\ a = 4.2$