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Finding the Third Proportional to 3,927 and 8,258

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Solution

The third proportional to 3,927 and 8,258 is: 17,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927 : 8,258 = 8,258 : x
  2. Step 2: Convert to fraction form
    3,927/8,258 = 8,258/x
  3. Step 3: Cross multiply
    3,927x = 8,258 × 8,258
  4. Step 4: Simplify right side
    3,927x = 68,194,564
  5. Step 5: Solve for x
    x = 68,194,564/3,927
  6. Step 6: Final answer
    x = 17,365.56

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.