Solve the equation: 6.5: x=3.24: 4.
解方程：6.5：x=3.24：4．
<gadget id="calculator">6.5 * 4</gadget>
<output>26</output>

<gadget id="calculator">26 / 3.24</gadget>
<output>8.024691</output>

<result>8.024691</result>