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Finding the Fourth Proportional to 8,879.62, 12,260.07 and 5,523.95

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Solution

The fourth proportional to 8,879.62, 12,260.07 and 5,523.95 is: 7,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.62 : 12,260.07 = 5,523.95 : x
  2. Step 2: Convert to fraction form
    8,879.62/12,260.07 = 5,523.95/x
  3. Step 3: Cross multiply
    8,879.62x = 12,260.07 × 5,523.95
  4. Step 4: Simplify right side
    8,879.62x = 67,723,952.38
  5. Step 5: Solve for x
    x = 67,723,952.38/8,879.62
  6. Step 6: Final answer
    x = 7,626.90

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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.