In the preparations for the party to welcome new students, the students of Class 4 and 1 bought a ribbon. The students used half of the ribbon for the first time, used the remaining half for the second time, and used the remaining half for the third time, leaving 6.38 meters. How long was the ribbon?
在迎接新同学的联欢会准备工作中，四1班的同学买了一条彩带．同学们第一次用去彩带的一半，第二次又用去剩下的一半，第三次又用去剩下的一半后还剩下6.38米，这条彩带原来长多少米？
<gadget id="calculator">6.76 * 2 * 2</gadget>
<output>27.04</output>

<result>27.04</result>