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Finding the Third Proportional to 3,260.25 and 7,156.69

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Solution

The third proportional to 3,260.25 and 7,156.69 is: 15,709.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.25 : 7,156.69 = 7,156.69 : x
  2. Step 2: Convert to fraction form
    3,260.25/7,156.69 = 7,156.69/x
  3. Step 3: Cross multiply
    3,260.25x = 7,156.69 × 7,156.69
  4. Step 4: Simplify right side
    3,260.25x = 51,218,175.97
  5. Step 5: Solve for x
    x = 51,218,175.97/3,260.25
  6. Step 6: Final answer
    x = 15,709.89

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.