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Finding the Third Proportional to 3,754 and 5,419

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Solution

The third proportional to 3,754 and 5,419 is: 7,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754 : 5,419 = 5,419 : x
  2. Step 2: Convert to fraction form
    3,754/5,419 = 5,419/x
  3. Step 3: Cross multiply
    3,754x = 5,419 × 5,419
  4. Step 4: Simplify right side
    3,754x = 29,365,561
  5. Step 5: Solve for x
    x = 29,365,561/3,754
  6. Step 6: Final answer
    x = 7,822.47

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.