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Finding the Fourth Proportional to 83,674.80, 125,512.20 and 39,332.16

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Solution

The fourth proportional to 83,674.80, 125,512.20 and 39,332.16 is: 58,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,674.80 : 125,512.20 = 39,332.16 : x
  2. Step 2: Convert to fraction form
    83,674.80/125,512.20 = 39,332.16/x
  3. Step 3: Cross multiply
    83,674.80x = 125,512.20 × 39,332.16
  4. Step 4: Simplify right side
    83,674.80x = 4,936,665,932.35
  5. Step 5: Solve for x
    x = 4,936,665,932.35/83,674.80
  6. Step 6: Final answer
    x = 58,998.24

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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.