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Finding the Fourth Proportional to 31,893.56, 47,850.60 and 9,711.22

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Solution

The fourth proportional to 31,893.56, 47,850.60 and 9,711.22 is: 14,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,893.56 : 47,850.60 = 9,711.22 : x
  2. Step 2: Convert to fraction form
    31,893.56/47,850.60 = 9,711.22/x
  3. Step 3: Cross multiply
    31,893.56x = 47,850.60 × 9,711.22
  4. Step 4: Simplify right side
    31,893.56x = 464,687,703.73
  5. Step 5: Solve for x
    x = 464,687,703.73/31,893.56
  6. Step 6: Final answer
    x = 14,569.95

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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.