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Finding the Third Proportional to 3,331 and 4,930

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Solution

The third proportional to 3,331 and 4,930 is: 7,296.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331 : 4,930 = 4,930 : x
  2. Step 2: Convert to fraction form
    3,331/4,930 = 4,930/x
  3. Step 3: Cross multiply
    3,331x = 4,930 × 4,930
  4. Step 4: Simplify right side
    3,331x = 24,304,900
  5. Step 5: Solve for x
    x = 24,304,900/3,331
  6. Step 6: Final answer
    x = 7,296.58

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.