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Finding the Third Proportional to 52,774 and 81,672

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Solution

The third proportional to 52,774 and 81,672 is: 126,393.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,774 : 81,672 = 81,672 : x
  2. Step 2: Convert to fraction form
    52,774/81,672 = 81,672/x
  3. Step 3: Cross multiply
    52,774x = 81,672 × 81,672
  4. Step 4: Simplify right side
    52,774x = 6,670,315,584
  5. Step 5: Solve for x
    x = 6,670,315,584/52,774
  6. Step 6: Final answer
    x = 126,393.97

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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.