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Finding the Fourth Proportional to 67,202.88, 100,775.13 and 20,444.82

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Solution

The fourth proportional to 67,202.88, 100,775.13 and 20,444.82 is: 30,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,202.88 : 100,775.13 = 20,444.82 : x
  2. Step 2: Convert to fraction form
    67,202.88/100,775.13 = 20,444.82/x
  3. Step 3: Cross multiply
    67,202.88x = 100,775.13 × 20,444.82
  4. Step 4: Simplify right side
    67,202.88x = 2,060,329,393.33
  5. Step 5: Solve for x
    x = 2,060,329,393.33/67,202.88
  6. Step 6: Final answer
    x = 30,658.35

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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.