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Finding the Third Proportional to 3,615 and 8,067

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Solution

The third proportional to 3,615 and 8,067 is: 18,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615 : 8,067 = 8,067 : x
  2. Step 2: Convert to fraction form
    3,615/8,067 = 8,067/x
  3. Step 3: Cross multiply
    3,615x = 8,067 × 8,067
  4. Step 4: Simplify right side
    3,615x = 65,076,489
  5. Step 5: Solve for x
    x = 65,076,489/3,615
  6. Step 6: Final answer
    x = 18,001.80

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.