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Finding the Fourth Proportional to 11,873.92, 17,817.57 and 8,179.11

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Solution

The fourth proportional to 11,873.92, 17,817.57 and 8,179.11 is: 12,273.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.92 : 17,817.57 = 8,179.11 : x
  2. Step 2: Convert to fraction form
    11,873.92/17,817.57 = 8,179.11/x
  3. Step 3: Cross multiply
    11,873.92x = 17,817.57 × 8,179.11
  4. Step 4: Simplify right side
    11,873.92x = 145,731,864.96
  5. Step 5: Solve for x
    x = 145,731,864.96/11,873.92
  6. Step 6: Final answer
    x = 12,273.27

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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.