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Finding the Fourth Proportional to 8,868.14, 12,149.29 and 8,535.77

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Solution

The fourth proportional to 8,868.14, 12,149.29 and 8,535.77 is: 11,693.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.14 : 12,149.29 = 8,535.77 : x
  2. Step 2: Convert to fraction form
    8,868.14/12,149.29 = 8,535.77/x
  3. Step 3: Cross multiply
    8,868.14x = 12,149.29 × 8,535.77
  4. Step 4: Simplify right side
    8,868.14x = 103,703,545.10
  5. Step 5: Solve for x
    x = 103,703,545.10/8,868.14
  6. Step 6: Final answer
    x = 11,693.95

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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.