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Finding the Fourth Proportional to 67,247.56, 100,887.54 and 20,497.56

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Solution

The fourth proportional to 67,247.56, 100,887.54 and 20,497.56 is: 30,751.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,247.56 : 100,887.54 = 20,497.56 : x
  2. Step 2: Convert to fraction form
    67,247.56/100,887.54 = 20,497.56/x
  3. Step 3: Cross multiply
    67,247.56x = 100,887.54 × 20,497.56
  4. Step 4: Simplify right side
    67,247.56x = 2,067,948,404.40
  5. Step 5: Solve for x
    x = 2,067,948,404.40/67,247.56
  6. Step 6: Final answer
    x = 30,751.28

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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.