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Finding the Third Proportional to 5,992 and 7,878

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Solution

The third proportional to 5,992 and 7,878 is: 10,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,992 : 7,878 = 7,878 : x
  2. Step 2: Convert to fraction form
    5,992/7,878 = 7,878/x
  3. Step 3: Cross multiply
    5,992x = 7,878 × 7,878
  4. Step 4: Simplify right side
    5,992x = 62,062,884
  5. Step 5: Solve for x
    x = 62,062,884/5,992
  6. Step 6: Final answer
    x = 10,357.62

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.