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Finding the Fourth Proportional to 14,640.51, 21,933.21 and 7,236.30

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Solution

The fourth proportional to 14,640.51, 21,933.21 and 7,236.30 is: 10,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.51 : 21,933.21 = 7,236.30 : x
  2. Step 2: Convert to fraction form
    14,640.51/21,933.21 = 7,236.30/x
  3. Step 3: Cross multiply
    14,640.51x = 21,933.21 × 7,236.30
  4. Step 4: Simplify right side
    14,640.51x = 158,715,287.52
  5. Step 5: Solve for x
    x = 158,715,287.52/14,640.51
  6. Step 6: Final answer
    x = 10,840.83

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