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Finding the Third Proportional to 11,221.25 and 16,615

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Solution

The third proportional to 11,221.25 and 16,615 is: 24,601.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.25 : 16,615 = 16,615 : x
  2. Step 2: Convert to fraction form
    11,221.25/16,615 = 16,615/x
  3. Step 3: Cross multiply
    11,221.25x = 16,615 × 16,615
  4. Step 4: Simplify right side
    11,221.25x = 276,058,225
  5. Step 5: Solve for x
    x = 276,058,225/11,221.25
  6. Step 6: Final answer
    x = 24,601.38

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.