If $\frac{2}{3}÷\frac{2}{7}\times \frac{x}{7}=1\frac{1}{4}\times \frac{2}{3}÷\frac{1}{6}$, then find the value of $x$.

The value of $5463+546.3-54.63 ÷ ? = 5999.3$

What value will replace "?" in the above equation?

If $5\times ?=8484÷4$

What value will replace "?" in the above equation?

$7059-2350+1935=?\times 50$

What value will replace "?" in the above equation?

$\frac{18+17\times 3-1}{8-15÷3-1} = ?$

What value will replace "?" in the above equation?

$58\%$ of $450-?\%$ of $250=181$

What value will replace "?" in the above equation?

$17.7\%$ of $286=?$

What value will replace "?" in the above equation?

$16\%$ of $550÷?\%$ of $500=2.5$

What value will replace "?" in the above equation?

$22\%$  of $364 - ? = 23$

What value will replace "?" in the above equation?