Cars A and B start from the east and west cities at the same time. Car A meets car B at a distance of 12 kilometers beyond the midpoint. It is known that the ratio of the distance traveled by car A to the distance traveled by car B is 7:4. How many kilometers are the two cities apart?
甲乙两车同时从东、西两城出发，甲车在超过中点12千米的地方与乙车相遇，已知甲车所走的路程与乙车所行路程的比是7：4，东西两城相距多少千米？
<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">7 + 4</gadget>
<output>11</output>

<gadget id="calculator">7 / 11</gadget>
<output>7/11 = around 0.636364</output>

<gadget id="calculator">4 / 11</gadget>
<output>4/11 = around 0.363636</output>

<gadget id="calculator">(7/11) - (4/11)</gadget>
<output>3/11 = around 0.272727</output>

<gadget id="calculator">24 / (3/11)</gadget>
<output>88</output>

<result>88</result>