What is x when 55 divided by x equals 63?

To find the answer, just divide the dividend by the quotient: 55 ÷ 63 = 0.87301587301587

To prove this, let's compute 55 divided by 0.87301587301587: $\frac{55}{0.87301587301587} = 63$

How does it work?

Asking what the value of x could be when 55 divided by x gives a result of 63, is equivalent to solving the following equation:

$\frac{55}{x} = 63$

Multiply both sides by x: $\frac{55 x}{x} = 63 x$
$\frac{55 x}{x}$ is equivalent to $\frac{x}{x} \times 55$ , which simplifies to $1 \times 55$ (or just $55$ ).
Thus, the equation becomes: $55 = 63 x$
To find x, divide both sides by 63: $\frac{55}{63} = \frac{63 x}{63}$
Which gives, after simplification: $0.87301587301587 = x$ (or $x = 0.87301587301587$ )

So, if the dividend is 55 and the quotient is 63, the divisor is 0.87301587301587.