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Finding the Fourth Proportional to 47,251.70, 70,983.15 and 39,475.70

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Solution

The fourth proportional to 47,251.70, 70,983.15 and 39,475.70 is: 59,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,251.70 : 70,983.15 = 39,475.70 : x
  2. Step 2: Convert to fraction form
    47,251.70/70,983.15 = 39,475.70/x
  3. Step 3: Cross multiply
    47,251.70x = 70,983.15 × 39,475.70
  4. Step 4: Simplify right side
    47,251.70x = 2,802,109,534.46
  5. Step 5: Solve for x
    x = 2,802,109,534.46/47,251.70
  6. Step 6: Final answer
    x = 59,301.77

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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.