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Finding the Fourth Proportional to 83,894.80, 125,842.20 and 33,998.80

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Solution

The fourth proportional to 83,894.80, 125,842.20 and 33,998.80 is: 50,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,894.80 : 125,842.20 = 33,998.80 : x
  2. Step 2: Convert to fraction form
    83,894.80/125,842.20 = 33,998.80/x
  3. Step 3: Cross multiply
    83,894.80x = 125,842.20 × 33,998.80
  4. Step 4: Simplify right side
    83,894.80x = 4,278,483,789.36
  5. Step 5: Solve for x
    x = 4,278,483,789.36/83,894.80
  6. Step 6: Final answer
    x = 50,998.20

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Similar ratio
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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.