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Finding the Third Proportional to 5,161 and 5,809

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Solution

The third proportional to 5,161 and 5,809 is: 6,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161 : 5,809 = 5,809 : x
  2. Step 2: Convert to fraction form
    5,161/5,809 = 5,809/x
  3. Step 3: Cross multiply
    5,161x = 5,809 × 5,809
  4. Step 4: Simplify right side
    5,161x = 33,744,481
  5. Step 5: Solve for x
    x = 33,744,481/5,161
  6. Step 6: Final answer
    x = 6,538.36

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.