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Finding the Third Proportional to 863.44 and 1,972.97

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Solution

The third proportional to 863.44 and 1,972.97 is: 4,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.44 : 1,972.97 = 1,972.97 : x
  2. Step 2: Convert to fraction form
    863.44/1,972.97 = 1,972.97/x
  3. Step 3: Cross multiply
    863.44x = 1,972.97 × 1,972.97
  4. Step 4: Simplify right side
    863.44x = 3,892,605.69
  5. Step 5: Solve for x
    x = 3,892,605.69/863.44
  6. Step 6: Final answer
    x = 4,508.27

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.