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Finding the Fourth Proportional to 47,332.70, 70,999.05 and 14,057.90

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Solution

The fourth proportional to 47,332.70, 70,999.05 and 14,057.90 is: 21,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,332.70 : 70,999.05 = 14,057.90 : x
  2. Step 2: Convert to fraction form
    47,332.70/70,999.05 = 14,057.90/x
  3. Step 3: Cross multiply
    47,332.70x = 70,999.05 × 14,057.90
  4. Step 4: Simplify right side
    47,332.70x = 998,097,545.00
  5. Step 5: Solve for x
    x = 998,097,545.00/47,332.70
  6. Step 6: Final answer
    x = 21,086.85

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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.