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Finding the Third Proportional to 2,989 and 6,542

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Solution

The third proportional to 2,989 and 6,542 is: 14,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989 : 6,542 = 6,542 : x
  2. Step 2: Convert to fraction form
    2,989/6,542 = 6,542/x
  3. Step 3: Cross multiply
    2,989x = 6,542 × 6,542
  4. Step 4: Simplify right side
    2,989x = 42,797,764
  5. Step 5: Solve for x
    x = 42,797,764/2,989
  6. Step 6: Final answer
    x = 14,318.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.