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Finding the Third Proportional to 6,904 and 11,108

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Solution

The third proportional to 6,904 and 11,108 is: 17,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904 : 11,108 = 11,108 : x
  2. Step 2: Convert to fraction form
    6,904/11,108 = 11,108/x
  3. Step 3: Cross multiply
    6,904x = 11,108 × 11,108
  4. Step 4: Simplify right side
    6,904x = 123,387,664
  5. Step 5: Solve for x
    x = 123,387,664/6,904
  6. Step 6: Final answer
    x = 17,871.91

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.