What is x when 63 divided by x equals 51?

To find the answer, just divide the dividend by the quotient: 63 ÷ 51 = 1.2352941176471

To prove this, let's compute 63 divided by 1.2352941176471: $\frac{63}{1.2352941176471} = 51$

How does it work?

Asking what the value of x could be when 63 divided by x gives a result of 51, is equivalent to solving the following equation:

$\frac{63}{x} = 51$

Multiply both sides by x: $\frac{63 x}{x} = 51 x$
$\frac{63 x}{x}$ is equivalent to $\frac{x}{x} \times 63$ , which simplifies to $1 \times 63$ (or just $63$ ).
Thus, the equation becomes: $63 = 51 x$
To find x, divide both sides by 51: $\frac{63}{51} = \frac{51 x}{51}$
Which gives, after simplification: $1.2352941176471 = x$ (or $x = 1.2352941176471$ )

So, if the dividend is 63 and the quotient is 51, the divisor is 1.2352941176471.