The curved surface area of a cone is 87.5% more than that of a hemisphere. If the slant height of the cone is 35 cm and the radius of a hemisphere is 14 cm. If the radius of the cone is denoted by 'R' cm and √x2 - R - 67/√(4x2) = (166/x) - 9.5 then find the positive value of 'x'?
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19
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20
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21
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22
5
23