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Finding the Fourth Proportional to 41,480.81, 62,212.84 and 11,890.70

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Solution

The fourth proportional to 41,480.81, 62,212.84 and 11,890.70 is: 17,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,480.81 : 62,212.84 = 11,890.70 : x
  2. Step 2: Convert to fraction form
    41,480.81/62,212.84 = 11,890.70/x
  3. Step 3: Cross multiply
    41,480.81x = 62,212.84 × 11,890.70
  4. Step 4: Simplify right side
    41,480.81x = 739,753,875.80
  5. Step 5: Solve for x
    x = 739,753,875.80/41,480.81
  6. Step 6: Final answer
    x = 17,833.64

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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.