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Finding the Third Proportional to 5,743 and 8,615

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Solution

The third proportional to 5,743 and 8,615 is: 12,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,743 : 8,615 = 8,615 : x
  2. Step 2: Convert to fraction form
    5,743/8,615 = 8,615/x
  3. Step 3: Cross multiply
    5,743x = 8,615 × 8,615
  4. Step 4: Simplify right side
    5,743x = 74,218,225
  5. Step 5: Solve for x
    x = 74,218,225/5,743
  6. Step 6: Final answer
    x = 12,923.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.