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Finding the Fourth Proportional to 83,808.47, 125,712.38 and 33,887.97

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Solution

The fourth proportional to 83,808.47, 125,712.38 and 33,887.97 is: 50,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,808.47 : 125,712.38 = 33,887.97 : x
  2. Step 2: Convert to fraction form
    83,808.47/125,712.38 = 33,887.97/x
  3. Step 3: Cross multiply
    83,808.47x = 125,712.38 × 33,887.97
  4. Step 4: Simplify right side
    83,808.47x = 4,260,137,446.79
  5. Step 5: Solve for x
    x = 4,260,137,446.79/83,808.47
  6. Step 6: Final answer
    x = 50,831.82

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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.