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Finding the Fourth Proportional to 67,070.88, 100,571.76 and 27,620.64

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Solution

The fourth proportional to 67,070.88, 100,571.76 and 27,620.64 is: 41,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,070.88 : 100,571.76 = 27,620.64 : x
  2. Step 2: Convert to fraction form
    67,070.88/100,571.76 = 27,620.64/x
  3. Step 3: Cross multiply
    67,070.88x = 100,571.76 × 27,620.64
  4. Step 4: Simplify right side
    67,070.88x = 2,777,856,377.13
  5. Step 5: Solve for x
    x = 2,777,856,377.13/67,070.88
  6. Step 6: Final answer
    x = 41,416.73

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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.