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Finding the Third Proportional to 5,090 and 7,067

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Solution

The third proportional to 5,090 and 7,067 is: 9,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090 : 7,067 = 7,067 : x
  2. Step 2: Convert to fraction form
    5,090/7,067 = 7,067/x
  3. Step 3: Cross multiply
    5,090x = 7,067 × 7,067
  4. Step 4: Simplify right side
    5,090x = 49,942,489
  5. Step 5: Solve for x
    x = 49,942,489/5,090
  6. Step 6: Final answer
    x = 9,811.88

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.