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Finding the Third Proportional to 61,638 and 88,085

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Solution

The third proportional to 61,638 and 88,085 is: 125,879.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638 : 88,085 = 88,085 : x
  2. Step 2: Convert to fraction form
    61,638/88,085 = 88,085/x
  3. Step 3: Cross multiply
    61,638x = 88,085 × 88,085
  4. Step 4: Simplify right side
    61,638x = 7,758,967,225
  5. Step 5: Solve for x
    x = 7,758,967,225/61,638
  6. Step 6: Final answer
    x = 125,879.61

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.