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Finding the Third Proportional to 3,285 and 5,089

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Solution

The third proportional to 3,285 and 5,089 is: 7,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285 : 5,089 = 5,089 : x
  2. Step 2: Convert to fraction form
    3,285/5,089 = 5,089/x
  3. Step 3: Cross multiply
    3,285x = 5,089 × 5,089
  4. Step 4: Simplify right side
    3,285x = 25,897,921
  5. Step 5: Solve for x
    x = 25,897,921/3,285
  6. Step 6: Final answer
    x = 7,883.69

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.