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Finding the Third Proportional to 6,396.75 and 13,110

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Solution

The third proportional to 6,396.75 and 13,110 is: 26,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.75 : 13,110 = 13,110 : x
  2. Step 2: Convert to fraction form
    6,396.75/13,110 = 13,110/x
  3. Step 3: Cross multiply
    6,396.75x = 13,110 × 13,110
  4. Step 4: Simplify right side
    6,396.75x = 171,872,100
  5. Step 5: Solve for x
    x = 171,872,100/6,396.75
  6. Step 6: Final answer
    x = 26,868.66

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.