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Finding the Third Proportional to 3,838 and 6,109

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Solution

The third proportional to 3,838 and 6,109 is: 9,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838 : 6,109 = 6,109 : x
  2. Step 2: Convert to fraction form
    3,838/6,109 = 6,109/x
  3. Step 3: Cross multiply
    3,838x = 6,109 × 6,109
  4. Step 4: Simplify right side
    3,838x = 37,319,881
  5. Step 5: Solve for x
    x = 37,319,881/3,838
  6. Step 6: Final answer
    x = 9,723.78

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.