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Finding the Third Proportional to 2,476 and 3,947

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Solution

The third proportional to 2,476 and 3,947 is: 6,291.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476 : 3,947 = 3,947 : x
  2. Step 2: Convert to fraction form
    2,476/3,947 = 3,947/x
  3. Step 3: Cross multiply
    2,476x = 3,947 × 3,947
  4. Step 4: Simplify right side
    2,476x = 15,578,809
  5. Step 5: Solve for x
    x = 15,578,809/2,476
  6. Step 6: Final answer
    x = 6,291.93

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.