Question

Знайти невідомий член пропорції:

Answer 1

$\displaystyle2,8:x=1\frac{2}{3}:2\frac{6}{7},x\neq 0\\\\ \frac{14}{5}*2\frac{6}{7}=1\frac{2}{3}x\\\\ \frac{14}{5}*\frac{20}{7}=\frac{5}{3}x\\\\ 2*4=\frac{5}{3}x\\\\ 8=\frac{5}{3}x\\\\ \frac{24}{5}=x\\\\ x=\frac{24}{5}=4\frac{4}{5}=4,8$