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Finding the Third Proportional to 43,489.13 and 67,198.50

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Solution

The third proportional to 43,489.13 and 67,198.50 is: 103,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,489.13 : 67,198.50 = 67,198.50 : x
  2. Step 2: Convert to fraction form
    43,489.13/67,198.50 = 67,198.50/x
  3. Step 3: Cross multiply
    43,489.13x = 67,198.50 × 67,198.50
  4. Step 4: Simplify right side
    43,489.13x = 4,515,638,402.25
  5. Step 5: Solve for x
    x = 4,515,638,402.25/43,489.13
  6. Step 6: Final answer
    x = 103,833.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.