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Finding the Fourth Proportional to 57,879.92, 86,830.68 and 26,292.20

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Solution

The fourth proportional to 57,879.92, 86,830.68 and 26,292.20 is: 39,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.92 : 86,830.68 = 26,292.20 : x
  2. Step 2: Convert to fraction form
    57,879.92/86,830.68 = 26,292.20/x
  3. Step 3: Cross multiply
    57,879.92x = 86,830.68 × 26,292.20
  4. Step 4: Simplify right side
    57,879.92x = 2,282,969,604.70
  5. Step 5: Solve for x
    x = 2,282,969,604.70/57,879.92
  6. Step 6: Final answer
    x = 39,443.21

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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.