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Finding the Third Proportional to 5,982 and 13,821

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Solution

The third proportional to 5,982 and 13,821 is: 31,932.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,982 : 13,821 = 13,821 : x
  2. Step 2: Convert to fraction form
    5,982/13,821 = 13,821/x
  3. Step 3: Cross multiply
    5,982x = 13,821 × 13,821
  4. Step 4: Simplify right side
    5,982x = 191,020,041
  5. Step 5: Solve for x
    x = 191,020,041/5,982
  6. Step 6: Final answer
    x = 31,932.47

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.