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Finding the Fourth Proportional to 39,872.59, 59,821.19 and 14,915.16

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Solution

The fourth proportional to 39,872.59, 59,821.19 and 14,915.16 is: 22,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.59 : 59,821.19 = 14,915.16 : x
  2. Step 2: Convert to fraction form
    39,872.59/59,821.19 = 14,915.16/x
  3. Step 3: Cross multiply
    39,872.59x = 59,821.19 × 14,915.16
  4. Step 4: Simplify right side
    39,872.59x = 892,242,620.24
  5. Step 5: Solve for x
    x = 892,242,620.24/39,872.59
  6. Step 6: Final answer
    x = 22,377.34

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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.