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Finding the Fourth Proportional to 16,957.22, 25,411.17 and 8,181.86

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Solution

The fourth proportional to 16,957.22, 25,411.17 and 8,181.86 is: 12,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,957.22 : 25,411.17 = 8,181.86 : x
  2. Step 2: Convert to fraction form
    16,957.22/25,411.17 = 8,181.86/x
  3. Step 3: Cross multiply
    16,957.22x = 25,411.17 × 8,181.86
  4. Step 4: Simplify right side
    16,957.22x = 207,910,635.38
  5. Step 5: Solve for x
    x = 207,910,635.38/16,957.22
  6. Step 6: Final answer
    x = 12,260.89

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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.