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Finding the Third Proportional to 55,992 and 84,876

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Solution

The third proportional to 55,992 and 84,876 is: 128,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,992 : 84,876 = 84,876 : x
  2. Step 2: Convert to fraction form
    55,992/84,876 = 84,876/x
  3. Step 3: Cross multiply
    55,992x = 84,876 × 84,876
  4. Step 4: Simplify right side
    55,992x = 7,203,935,376
  5. Step 5: Solve for x
    x = 7,203,935,376/55,992
  6. Step 6: Final answer
    x = 128,660.08

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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.