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Finding the Fourth Proportional to 16,656.78, 24,997.55 and 7,891.73

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Solution

The fourth proportional to 16,656.78, 24,997.55 and 7,891.73 is: 11,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656.78 : 24,997.55 = 7,891.73 : x
  2. Step 2: Convert to fraction form
    16,656.78/24,997.55 = 7,891.73/x
  3. Step 3: Cross multiply
    16,656.78x = 24,997.55 × 7,891.73
  4. Step 4: Simplify right side
    16,656.78x = 197,273,915.26
  5. Step 5: Solve for x
    x = 197,273,915.26/16,656.78
  6. Step 6: Final answer
    x = 11,843.46

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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.