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Finding the Fourth Proportional to 13,711.86, 18,922.37 and 7,424.24

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Solution

The fourth proportional to 13,711.86, 18,922.37 and 7,424.24 is: 10,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.86 : 18,922.37 = 7,424.24 : x
  2. Step 2: Convert to fraction form
    13,711.86/18,922.37 = 7,424.24/x
  3. Step 3: Cross multiply
    13,711.86x = 18,922.37 × 7,424.24
  4. Step 4: Simplify right side
    13,711.86x = 140,484,084.52
  5. Step 5: Solve for x
    x = 140,484,084.52/13,711.86
  6. Step 6: Final answer
    x = 10,245.44

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