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Finding the Third Proportional to 3,434 and 7,561

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Solution

The third proportional to 3,434 and 7,561 is: 16,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434 : 7,561 = 7,561 : x
  2. Step 2: Convert to fraction form
    3,434/7,561 = 7,561/x
  3. Step 3: Cross multiply
    3,434x = 7,561 × 7,561
  4. Step 4: Simplify right side
    3,434x = 57,168,721
  5. Step 5: Solve for x
    x = 57,168,721/3,434
  6. Step 6: Final answer
    x = 16,647.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.