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Finding the Fourth Proportional to 8,892.29, 12,257.18 and 7,000.87

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Solution

The fourth proportional to 8,892.29, 12,257.18 and 7,000.87 is: 9,650.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.29 : 12,257.18 = 7,000.87 : x
  2. Step 2: Convert to fraction form
    8,892.29/12,257.18 = 7,000.87/x
  3. Step 3: Cross multiply
    8,892.29x = 12,257.18 × 7,000.87
  4. Step 4: Simplify right side
    8,892.29x = 85,810,923.75
  5. Step 5: Solve for x
    x = 85,810,923.75/8,892.29
  6. Step 6: Final answer
    x = 9,650.04

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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.