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Finding the Fourth Proportional to 40,374.80, 55,716.46 and 22,469.64

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Solution

The fourth proportional to 40,374.80, 55,716.46 and 22,469.64 is: 31,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,374.80 : 55,716.46 = 22,469.64 : x
  2. Step 2: Convert to fraction form
    40,374.80/55,716.46 = 22,469.64/x
  3. Step 3: Cross multiply
    40,374.80x = 55,716.46 × 22,469.64
  4. Step 4: Simplify right side
    40,374.80x = 1,251,928,798.27
  5. Step 5: Solve for x
    x = 1,251,928,798.27/40,374.80
  6. Step 6: Final answer
    x = 31,007.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.