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Finding the Third Proportional to 806 and 2,099

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Solution

The third proportional to 806 and 2,099 is: 5,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    806 : 2,099 = 2,099 : x
  2. Step 2: Convert to fraction form
    806/2,099 = 2,099/x
  3. Step 3: Cross multiply
    806x = 2,099 × 2,099
  4. Step 4: Simplify right side
    806x = 4,405,801
  5. Step 5: Solve for x
    x = 4,405,801/806
  6. Step 6: Final answer
    x = 5,466.25

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.