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Finding the Fourth Proportional to 8,832.85, 12,179.97 and 7,227.43

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Solution

The fourth proportional to 8,832.85, 12,179.97 and 7,227.43 is: 9,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.85 : 12,179.97 = 7,227.43 : x
  2. Step 2: Convert to fraction form
    8,832.85/12,179.97 = 7,227.43/x
  3. Step 3: Cross multiply
    8,832.85x = 12,179.97 × 7,227.43
  4. Step 4: Simplify right side
    8,832.85x = 88,029,850.13
  5. Step 5: Solve for x
    x = 88,029,850.13/8,832.85
  6. Step 6: Final answer
    x = 9,966.19

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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.