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Finding the Third Proportional to 4,067 and 5,407

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Solution

The third proportional to 4,067 and 5,407 is: 7,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,067 : 5,407 = 5,407 : x
  2. Step 2: Convert to fraction form
    4,067/5,407 = 5,407/x
  3. Step 3: Cross multiply
    4,067x = 5,407 × 5,407
  4. Step 4: Simplify right side
    4,067x = 29,235,649
  5. Step 5: Solve for x
    x = 29,235,649/4,067
  6. Step 6: Final answer
    x = 7,188.50

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.