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Finding the Fourth Proportional to 40,874.70, 61,279.65 and 22,406.70

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Solution

The fourth proportional to 40,874.70, 61,279.65 and 22,406.70 is: 33,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,874.70 : 61,279.65 = 22,406.70 : x
  2. Step 2: Convert to fraction form
    40,874.70/61,279.65 = 22,406.70/x
  3. Step 3: Cross multiply
    40,874.70x = 61,279.65 × 22,406.70
  4. Step 4: Simplify right side
    40,874.70x = 1,373,074,733.66
  5. Step 5: Solve for x
    x = 1,373,074,733.66/40,874.70
  6. Step 6: Final answer
    x = 33,592.29

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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.