In 2013, 18% of the 5,500 freshmen at the University of Washington in the United States came from China, and 10% of these foreign students were from China. The local students in the United States paid 9,000 US dollars per semester, and the tuition fee was less than that of foreign students (2/3 ), how much is the tuition fee paid by each foreign student per semester?
2013年，美国华盛顿大学5500名新生中，18%来自中国，这些外国学生中来自中国的学生就占10%，美国本地学生每人每学期缴纳9千美元，学费比外国学生少(2/3)，外国学生每人每学期缴纳学费多少美元？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9_000 / (1/3)</gadget>
<output>27_000</output>

<result>27_000</result>