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Finding the Third Proportional to 3,067 and 3,913

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Solution

The third proportional to 3,067 and 3,913 is: 4,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067 : 3,913 = 3,913 : x
  2. Step 2: Convert to fraction form
    3,067/3,913 = 3,913/x
  3. Step 3: Cross multiply
    3,067x = 3,913 × 3,913
  4. Step 4: Simplify right side
    3,067x = 15,311,569
  5. Step 5: Solve for x
    x = 15,311,569/3,067
  6. Step 6: Final answer
    x = 4,992.36

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.