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Finding the Fourth Proportional to 41,242.96, 61,860.92 and 13,161.88

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Solution

The fourth proportional to 41,242.96, 61,860.92 and 13,161.88 is: 19,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,242.96 : 61,860.92 = 13,161.88 : x
  2. Step 2: Convert to fraction form
    41,242.96/61,860.92 = 13,161.88/x
  3. Step 3: Cross multiply
    41,242.96x = 61,860.92 × 13,161.88
  4. Step 4: Simplify right side
    41,242.96x = 814,206,005.73
  5. Step 5: Solve for x
    x = 814,206,005.73/41,242.96
  6. Step 6: Final answer
    x = 19,741.70

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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.