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Finding the Fourth Proportional to 41,241.92, 61,866.86 and 11,660.72

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Solution

The fourth proportional to 41,241.92, 61,866.86 and 11,660.72 is: 17,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,241.92 : 61,866.86 = 11,660.72 : x
  2. Step 2: Convert to fraction form
    41,241.92/61,866.86 = 11,660.72/x
  3. Step 3: Cross multiply
    41,241.92x = 61,866.86 × 11,660.72
  4. Step 4: Simplify right side
    41,241.92x = 721,412,131.74
  5. Step 5: Solve for x
    x = 721,412,131.74/41,241.92
  6. Step 6: Final answer
    x = 17,492.21

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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.