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Finding the Fourth Proportional to 8,665.92, 11,958.96 and 4,687.04

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Solution

The fourth proportional to 8,665.92, 11,958.96 and 4,687.04 is: 6,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.92 : 11,958.96 = 4,687.04 : x
  2. Step 2: Convert to fraction form
    8,665.92/11,958.96 = 4,687.04/x
  3. Step 3: Cross multiply
    8,665.92x = 11,958.96 × 4,687.04
  4. Step 4: Simplify right side
    8,665.92x = 56,052,123.88
  5. Step 5: Solve for x
    x = 56,052,123.88/8,665.92
  6. Step 6: Final answer
    x = 6,468.11

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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.