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Finding the Third Proportional to 4,049 and 5,403

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Solution

The third proportional to 4,049 and 5,403 is: 7,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,049 : 5,403 = 5,403 : x
  2. Step 2: Convert to fraction form
    4,049/5,403 = 5,403/x
  3. Step 3: Cross multiply
    4,049x = 5,403 × 5,403
  4. Step 4: Simplify right side
    4,049x = 29,192,409
  5. Step 5: Solve for x
    x = 29,192,409/4,049
  6. Step 6: Final answer
    x = 7,209.78

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.