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Finding the Fourth Proportional to 43,915.76, 65,876.98 and 17,248.88

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Solution

The fourth proportional to 43,915.76, 65,876.98 and 17,248.88 is: 25,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,915.76 : 65,876.98 = 17,248.88 : x
  2. Step 2: Convert to fraction form
    43,915.76/65,876.98 = 17,248.88/x
  3. Step 3: Cross multiply
    43,915.76x = 65,876.98 × 17,248.88
  4. Step 4: Simplify right side
    43,915.76x = 1,136,304,122.78
  5. Step 5: Solve for x
    x = 1,136,304,122.78/43,915.76
  6. Step 6: Final answer
    x = 25,874.63

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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.