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Finding the Fourth Proportional to 31,932.53, 47,893.32 and 8,553.50

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Solution

The fourth proportional to 31,932.53, 47,893.32 and 8,553.50 is: 12,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,932.53 : 47,893.32 = 8,553.50 : x
  2. Step 2: Convert to fraction form
    31,932.53/47,893.32 = 8,553.50/x
  3. Step 3: Cross multiply
    31,932.53x = 47,893.32 × 8,553.50
  4. Step 4: Simplify right side
    31,932.53x = 409,655,512.62
  5. Step 5: Solve for x
    x = 409,655,512.62/31,932.53
  6. Step 6: Final answer
    x = 12,828.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.