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Finding the Fourth Proportional to 83,679.73, 125,519.56 and 21,350.23

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Solution

The fourth proportional to 83,679.73, 125,519.56 and 21,350.23 is: 32,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,679.73 : 125,519.56 = 21,350.23 : x
  2. Step 2: Convert to fraction form
    83,679.73/125,519.56 = 21,350.23/x
  3. Step 3: Cross multiply
    83,679.73x = 125,519.56 × 21,350.23
  4. Step 4: Simplify right side
    83,679.73x = 2,679,871,475.50
  5. Step 5: Solve for x
    x = 2,679,871,475.50/83,679.73
  6. Step 6: Final answer
    x = 32,025.34

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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.