19 is 30% of what number
\(19\ \rightarrow\ 30\%\\x\ \rightarrow\ 100\%\\\\x= \frac{19\cdot100\%}{30\%} \\\\x= \frac{190}{3}\ \ \ \Rightarrow\ \ \ x=63 \frac{1}{3}\)
19 = 30% x ?19 = 0.3 x ?19 ÷ 0.3 = 63, 1/3
