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Finding the Fourth Proportional to 41,396.40, 62,110.80 and 15,103.80

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Solution

The fourth proportional to 41,396.40, 62,110.80 and 15,103.80 is: 22,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,396.40 : 62,110.80 = 15,103.80 : x
  2. Step 2: Convert to fraction form
    41,396.40/62,110.80 = 15,103.80/x
  3. Step 3: Cross multiply
    41,396.40x = 62,110.80 × 15,103.80
  4. Step 4: Simplify right side
    41,396.40x = 938,109,101.04
  5. Step 5: Solve for x
    x = 938,109,101.04/41,396.40
  6. Step 6: Final answer
    x = 22,661.61

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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.