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Finding the Third Proportional to 7,149.75 and 11,049

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Solution

The third proportional to 7,149.75 and 11,049 is: 17,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.75 : 11,049 = 11,049 : x
  2. Step 2: Convert to fraction form
    7,149.75/11,049 = 11,049/x
  3. Step 3: Cross multiply
    7,149.75x = 11,049 × 11,049
  4. Step 4: Simplify right side
    7,149.75x = 122,080,401
  5. Step 5: Solve for x
    x = 122,080,401/7,149.75
  6. Step 6: Final answer
    x = 17,074.78

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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.