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Finding the Fourth Proportional to 12,475.60, 18,721.10 and 5,810.92

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Solution

The fourth proportional to 12,475.60, 18,721.10 and 5,810.92 is: 8,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.60 : 18,721.10 = 5,810.92 : x
  2. Step 2: Convert to fraction form
    12,475.60/18,721.10 = 5,810.92/x
  3. Step 3: Cross multiply
    12,475.60x = 18,721.10 × 5,810.92
  4. Step 4: Simplify right side
    12,475.60x = 108,786,785.36
  5. Step 5: Solve for x
    x = 108,786,785.36/12,475.60
  6. Step 6: Final answer
    x = 8,719.96

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