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Finding the Third Proportional to 43,140.94 and 66,217.50

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Solution

The third proportional to 43,140.94 and 66,217.50 is: 101,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.94 : 66,217.50 = 66,217.50 : x
  2. Step 2: Convert to fraction form
    43,140.94/66,217.50 = 66,217.50/x
  3. Step 3: Cross multiply
    43,140.94x = 66,217.50 × 66,217.50
  4. Step 4: Simplify right side
    43,140.94x = 4,384,757,306.25
  5. Step 5: Solve for x
    x = 4,384,757,306.25/43,140.94
  6. Step 6: Final answer
    x = 101,637.97

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.