A train travels 48 kilometers per hour before the speed increase, which is (2/3) the speed after the speed increase. How many kilometers per hour does it travel after the speed increase?
一列火车提速前每小时行驶48千米，是提速后速度的(2/3)，提速后每小时行驶多少千米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">48 / (2/3)</gadget>
<output>72</output>

<result>72</result>