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Finding the Third Proportional to 4,499 and 6,721

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Solution

The third proportional to 4,499 and 6,721 is: 10,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,499 : 6,721 = 6,721 : x
  2. Step 2: Convert to fraction form
    4,499/6,721 = 6,721/x
  3. Step 3: Cross multiply
    4,499x = 6,721 × 6,721
  4. Step 4: Simplify right side
    4,499x = 45,171,841
  5. Step 5: Solve for x
    x = 45,171,841/4,499
  6. Step 6: Final answer
    x = 10,040.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.