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Finding the Fourth Proportional to 17,102.90, 25,617.90 and 14,915.90

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Solution

The fourth proportional to 17,102.90, 25,617.90 and 14,915.90 is: 22,342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,102.90 : 25,617.90 = 14,915.90 : x
  2. Step 2: Convert to fraction form
    17,102.90/25,617.90 = 14,915.90/x
  3. Step 3: Cross multiply
    17,102.90x = 25,617.90 × 14,915.90
  4. Step 4: Simplify right side
    17,102.90x = 382,114,034.61
  5. Step 5: Solve for x
    x = 382,114,034.61/17,102.90
  6. Step 6: Final answer
    x = 22,342.06

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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.