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Finding the Fourth Proportional to 8,866.64, 12,147.24 and 8,534.27

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Solution

The fourth proportional to 8,866.64, 12,147.24 and 8,534.27 is: 11,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.64 : 12,147.24 = 8,534.27 : x
  2. Step 2: Convert to fraction form
    8,866.64/12,147.24 = 8,534.27/x
  3. Step 3: Cross multiply
    8,866.64x = 12,147.24 × 8,534.27
  4. Step 4: Simplify right side
    8,866.64x = 103,667,765.18
  5. Step 5: Solve for x
    x = 103,667,765.18/8,866.64
  6. Step 6: Final answer
    x = 11,691.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.