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Finding the Fourth Proportional to 41,983.70, 62,866.20 and 40,015.40

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Solution

The fourth proportional to 41,983.70, 62,866.20 and 40,015.40 is: 59,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,983.70 : 62,866.20 = 40,015.40 : x
  2. Step 2: Convert to fraction form
    41,983.70/62,866.20 = 40,015.40/x
  3. Step 3: Cross multiply
    41,983.70x = 62,866.20 × 40,015.40
  4. Step 4: Simplify right side
    41,983.70x = 2,515,616,139.48
  5. Step 5: Solve for x
    x = 2,515,616,139.48/41,983.70
  6. Step 6: Final answer
    x = 59,918.88

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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.