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Finding the Third Proportional to 33,915 and 51,881

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Solution

The third proportional to 33,915 and 51,881 is: 79,364.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,915 : 51,881 = 51,881 : x
  2. Step 2: Convert to fraction form
    33,915/51,881 = 51,881/x
  3. Step 3: Cross multiply
    33,915x = 51,881 × 51,881
  4. Step 4: Simplify right side
    33,915x = 2,691,638,161
  5. Step 5: Solve for x
    x = 2,691,638,161/33,915
  6. Step 6: Final answer
    x = 79,364.24

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.