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Finding the Fourth Proportional to 15,997.61, 23,996.40 and 8,591.88

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Solution

The fourth proportional to 15,997.61, 23,996.40 and 8,591.88 is: 12,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.61 : 23,996.40 = 8,591.88 : x
  2. Step 2: Convert to fraction form
    15,997.61/23,996.40 = 8,591.88/x
  3. Step 3: Cross multiply
    15,997.61x = 23,996.40 × 8,591.88
  4. Step 4: Simplify right side
    15,997.61x = 206,174,189.23
  5. Step 5: Solve for x
    x = 206,174,189.23/15,997.61
  6. Step 6: Final answer
    x = 12,887.82

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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.