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Finding the Fourth Proportional to 83,809.47, 125,713.88 and 33,888.97

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Solution

The fourth proportional to 83,809.47, 125,713.88 and 33,888.97 is: 50,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,809.47 : 125,713.88 = 33,888.97 : x
  2. Step 2: Convert to fraction form
    83,809.47/125,713.88 = 33,888.97/x
  3. Step 3: Cross multiply
    83,809.47x = 125,713.88 × 33,888.97
  4. Step 4: Simplify right side
    83,809.47x = 4,260,313,907.90
  5. Step 5: Solve for x
    x = 4,260,313,907.90/83,809.47
  6. Step 6: Final answer
    x = 50,833.32

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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.