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Finding the Third Proportional to 66,917 and 103,676

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Solution

The third proportional to 66,917 and 103,676 is: 160,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917 : 103,676 = 103,676 : x
  2. Step 2: Convert to fraction form
    66,917/103,676 = 103,676/x
  3. Step 3: Cross multiply
    66,917x = 103,676 × 103,676
  4. Step 4: Simplify right side
    66,917x = 10,748,712,976
  5. Step 5: Solve for x
    x = 10,748,712,976/66,917
  6. Step 6: Final answer
    x = 160,627.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.