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Finding the Fourth Proportional to 83,911.66, 125,867.82 and 33,992.71

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Solution

The fourth proportional to 83,911.66, 125,867.82 and 33,992.71 is: 50,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,911.66 : 125,867.82 = 33,992.71 : x
  2. Step 2: Convert to fraction form
    83,911.66/125,867.82 = 33,992.71/x
  3. Step 3: Cross multiply
    83,911.66x = 125,867.82 × 33,992.71
  4. Step 4: Simplify right side
    83,911.66x = 4,278,588,303.59
  5. Step 5: Solve for x
    x = 4,278,588,303.59/83,911.66
  6. Step 6: Final answer
    x = 50,989.20

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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.