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Finding the Fourth Proportional to 83,707.25, 125,565.57 and 26,786.12

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Solution

The fourth proportional to 83,707.25, 125,565.57 and 26,786.12 is: 40,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,707.25 : 125,565.57 = 26,786.12 : x
  2. Step 2: Convert to fraction form
    83,707.25/125,565.57 = 26,786.12/x
  3. Step 3: Cross multiply
    83,707.25x = 125,565.57 × 26,786.12
  4. Step 4: Simplify right side
    83,707.25x = 3,363,414,739.80
  5. Step 5: Solve for x
    x = 3,363,414,739.80/83,707.25
  6. Step 6: Final answer
    x = 40,180.68

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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.