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Finding the Fourth Proportional to 41,398.72, 61,780.04 and 36,969.92

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Solution

The fourth proportional to 41,398.72, 61,780.04 and 36,969.92 is: 55,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,398.72 : 61,780.04 = 36,969.92 : x
  2. Step 2: Convert to fraction form
    41,398.72/61,780.04 = 36,969.92/x
  3. Step 3: Cross multiply
    41,398.72x = 61,780.04 × 36,969.92
  4. Step 4: Simplify right side
    41,398.72x = 2,284,003,136.40
  5. Step 5: Solve for x
    x = 2,284,003,136.40/41,398.72
  6. Step 6: Final answer
    x = 55,170.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.