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Finding the Fourth Proportional to 16,213.86, 22,375.14 and 8,761.86

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Solution

The fourth proportional to 16,213.86, 22,375.14 and 8,761.86 is: 12,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,213.86 : 22,375.14 = 8,761.86 : x
  2. Step 2: Convert to fraction form
    16,213.86/22,375.14 = 8,761.86/x
  3. Step 3: Cross multiply
    16,213.86x = 22,375.14 × 8,761.86
  4. Step 4: Simplify right side
    16,213.86x = 196,047,811.30
  5. Step 5: Solve for x
    x = 196,047,811.30/16,213.86
  6. Step 6: Final answer
    x = 12,091.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.