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Finding the Fourth Proportional to 67,540.77, 93,217.84 and 39,262.86

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Solution

The fourth proportional to 67,540.77, 93,217.84 and 39,262.86 is: 54,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,540.77 : 93,217.84 = 39,262.86 : x
  2. Step 2: Convert to fraction form
    67,540.77/93,217.84 = 39,262.86/x
  3. Step 3: Cross multiply
    67,540.77x = 93,217.84 × 39,262.86
  4. Step 4: Simplify right side
    67,540.77x = 3,659,998,903.27
  5. Step 5: Solve for x
    x = 3,659,998,903.27/67,540.77
  6. Step 6: Final answer
    x = 54,189.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.