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Finding the Third Proportional to 3,123 and 4,837

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Solution

The third proportional to 3,123 and 4,837 is: 7,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123 : 4,837 = 4,837 : x
  2. Step 2: Convert to fraction form
    3,123/4,837 = 4,837/x
  3. Step 3: Cross multiply
    3,123x = 4,837 × 4,837
  4. Step 4: Simplify right side
    3,123x = 23,396,569
  5. Step 5: Solve for x
    x = 23,396,569/3,123
  6. Step 6: Final answer
    x = 7,491.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.