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Finding the Fourth Proportional to 41,578.30, 62,355.30 and 14,921.20

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Solution

The fourth proportional to 41,578.30, 62,355.30 and 14,921.20 is: 22,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,578.30 : 62,355.30 = 14,921.20 : x
  2. Step 2: Convert to fraction form
    41,578.30/62,355.30 = 14,921.20/x
  3. Step 3: Cross multiply
    41,578.30x = 62,355.30 × 14,921.20
  4. Step 4: Simplify right side
    41,578.30x = 930,415,902.36
  5. Step 5: Solve for x
    x = 930,415,902.36/41,578.30
  6. Step 6: Final answer
    x = 22,377.44

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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.