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Finding the Fourth Proportional to 16,761.36, 23,134.86 and 9,691.86

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Solution

The fourth proportional to 16,761.36, 23,134.86 and 9,691.86 is: 13,377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.36 : 23,134.86 = 9,691.86 : x
  2. Step 2: Convert to fraction form
    16,761.36/23,134.86 = 9,691.86/x
  3. Step 3: Cross multiply
    16,761.36x = 23,134.86 × 9,691.86
  4. Step 4: Simplify right side
    16,761.36x = 224,219,824.24
  5. Step 5: Solve for x
    x = 224,219,824.24/16,761.36
  6. Step 6: Final answer
    x = 13,377.19

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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.