In the 2008 Beijing Olympic Games, Russia won a total of 72 medals, more than China (18/25), and China's gold medals accounted for 51% of China's total medals. How many gold medals has China won?
在2008年北京奥运会上，俄罗斯共获得奖牌72枚，是中国所获奖牌的(18/25)，中国所获金牌占中国奖牌总数的51%．中国获金牌多少枚？
<gadget id="calculator">18 / 25</gadget>
<output>18/25 = around 0.72</output>

<gadget id="calculator">72 / (18/25)</gadget>
<output>100</output>

<gadget id="calculator">51 / 100</gadget>
<output>51/100 = around 0.51</output>

<gadget id="calculator">100 * (51/100)</gadget>
<output>51</output>

<result>51</result>