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Finding the Third Proportional to 33,912 and 51,657

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Solution

The third proportional to 33,912 and 51,657 is: 78,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,912 : 51,657 = 51,657 : x
  2. Step 2: Convert to fraction form
    33,912/51,657 = 51,657/x
  3. Step 3: Cross multiply
    33,912x = 51,657 × 51,657
  4. Step 4: Simplify right side
    33,912x = 2,668,445,649
  5. Step 5: Solve for x
    x = 2,668,445,649/33,912
  6. Step 6: Final answer
    x = 78,687.36

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.