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Finding the Fourth Proportional to 41,126.52, 61,689.84 and 9,961.68

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Solution

The fourth proportional to 41,126.52, 61,689.84 and 9,961.68 is: 14,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,126.52 : 61,689.84 = 9,961.68 : x
  2. Step 2: Convert to fraction form
    41,126.52/61,689.84 = 9,961.68/x
  3. Step 3: Cross multiply
    41,126.52x = 61,689.84 × 9,961.68
  4. Step 4: Simplify right side
    41,126.52x = 614,534,445.33
  5. Step 5: Solve for x
    x = 614,534,445.33/41,126.52
  6. Step 6: Final answer
    x = 14,942.53

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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.