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Finding the Third Proportional to 2,865.88 and 3,866.75

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Solution

The third proportional to 2,865.88 and 3,866.75 is: 5,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.88 : 3,866.75 = 3,866.75 : x
  2. Step 2: Convert to fraction form
    2,865.88/3,866.75 = 3,866.75/x
  3. Step 3: Cross multiply
    2,865.88x = 3,866.75 × 3,866.75
  4. Step 4: Simplify right side
    2,865.88x = 14,951,755.56
  5. Step 5: Solve for x
    x = 14,951,755.56/2,865.88
  6. Step 6: Final answer
    x = 5,217.17

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.