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Finding the Fourth Proportional to 13,712.52, 18,923.25 and 7,424.91

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Solution

The fourth proportional to 13,712.52, 18,923.25 and 7,424.91 is: 10,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.52 : 18,923.25 = 7,424.91 : x
  2. Step 2: Convert to fraction form
    13,712.52/18,923.25 = 7,424.91/x
  3. Step 3: Cross multiply
    13,712.52x = 18,923.25 × 7,424.91
  4. Step 4: Simplify right side
    13,712.52x = 140,503,428.16
  5. Step 5: Solve for x
    x = 140,503,428.16/13,712.52
  6. Step 6: Final answer
    x = 10,246.36

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