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Finding the Fourth Proportional to 5,879.48, 8,815.67 and 2,760.17

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Solution

The fourth proportional to 5,879.48, 8,815.67 and 2,760.17 is: 4,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.48 : 8,815.67 = 2,760.17 : x
  2. Step 2: Convert to fraction form
    5,879.48/8,815.67 = 2,760.17/x
  3. Step 3: Cross multiply
    5,879.48x = 8,815.67 × 2,760.17
  4. Step 4: Simplify right side
    5,879.48x = 24,332,747.86
  5. Step 5: Solve for x
    x = 24,332,747.86/5,879.48
  6. Step 6: Final answer
    x = 4,138.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.