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Finding the Third Proportional to 5,615 and 8,493

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Solution

The third proportional to 5,615 and 8,493 is: 12,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615 : 8,493 = 8,493 : x
  2. Step 2: Convert to fraction form
    5,615/8,493 = 8,493/x
  3. Step 3: Cross multiply
    5,615x = 8,493 × 8,493
  4. Step 4: Simplify right side
    5,615x = 72,131,049
  5. Step 5: Solve for x
    x = 72,131,049/5,615
  6. Step 6: Final answer
    x = 12,846.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.