$$\frac{ 3 }{ x } = \frac{ 7 }{ y } = \frac{ 9 }{ z } = \frac{ 98 }{ 350 }$$
$x=\frac{75}{7}\text{ and }y=25\text{ and }z=\frac{225}{7}$
$x = \frac{75}{7} = 10\frac{5}{7} \approx 10.714285714$
$y=25\text{ and }z=\frac{225}{7}$
$z = \frac{225}{7} = 32\frac{1}{7} = 32.142857142857146$
$y=25\text{ and }x=\frac{75}{7}$
