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Finding the Fourth Proportional to 17,794.30, 26,691.45 and 15,915.10

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Solution

The fourth proportional to 17,794.30, 26,691.45 and 15,915.10 is: 23,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,794.30 : 26,691.45 = 15,915.10 : x
  2. Step 2: Convert to fraction form
    17,794.30/26,691.45 = 15,915.10/x
  3. Step 3: Cross multiply
    17,794.30x = 26,691.45 × 15,915.10
  4. Step 4: Simplify right side
    17,794.30x = 424,797,095.90
  5. Step 5: Solve for x
    x = 424,797,095.90/17,794.30
  6. Step 6: Final answer
    x = 23,872.65

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1.5x scale

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.