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Finding the Fourth Proportional to 83,901.56, 125,851.73 and 33,980.85

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Solution

The fourth proportional to 83,901.56, 125,851.73 and 33,980.85 is: 50,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,901.56 : 125,851.73 = 33,980.85 : x
  2. Step 2: Convert to fraction form
    83,901.56/125,851.73 = 33,980.85/x
  3. Step 3: Cross multiply
    83,901.56x = 125,851.73 × 33,980.85
  4. Step 4: Simplify right side
    83,901.56x = 4,276,548,589.47
  5. Step 5: Solve for x
    x = 4,276,548,589.47/83,901.56
  6. Step 6: Final answer
    x = 50,971.03

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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.