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Finding the Third Proportional to 3,311 and 4,829

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Solution

The third proportional to 3,311 and 4,829 is: 7,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311 : 4,829 = 4,829 : x
  2. Step 2: Convert to fraction form
    3,311/4,829 = 4,829/x
  3. Step 3: Cross multiply
    3,311x = 4,829 × 4,829
  4. Step 4: Simplify right side
    3,311x = 23,319,241
  5. Step 5: Solve for x
    x = 23,319,241/3,311
  6. Step 6: Final answer
    x = 7,042.96

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.