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Finding the Fourth Proportional to 67,572.56, 101,373.40 and 20,191.44

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Solution

The fourth proportional to 67,572.56, 101,373.40 and 20,191.44 is: 30,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,572.56 : 101,373.40 = 20,191.44 : x
  2. Step 2: Convert to fraction form
    67,572.56/101,373.40 = 20,191.44/x
  3. Step 3: Cross multiply
    67,572.56x = 101,373.40 × 20,191.44
  4. Step 4: Simplify right side
    67,572.56x = 2,046,874,923.70
  5. Step 5: Solve for x
    x = 2,046,874,923.70/67,572.56
  6. Step 6: Final answer
    x = 30,291.51

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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.