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Finding the Fourth Proportional to 67,471.53, 101,189.61 and 20,073.84

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Solution

The fourth proportional to 67,471.53, 101,189.61 and 20,073.84 is: 30,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,471.53 : 101,189.61 = 20,073.84 : x
  2. Step 2: Convert to fraction form
    67,471.53/101,189.61 = 20,073.84/x
  3. Step 3: Cross multiply
    67,471.53x = 101,189.61 × 20,073.84
  4. Step 4: Simplify right side
    67,471.53x = 2,031,264,040.80
  5. Step 5: Solve for x
    x = 2,031,264,040.80/67,471.53
  6. Step 6: Final answer
    x = 30,105.50

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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.