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Finding the Third Proportional to 3,937 and 8,566

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Solution

The third proportional to 3,937 and 8,566 is: 18,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937 : 8,566 = 8,566 : x
  2. Step 2: Convert to fraction form
    3,937/8,566 = 8,566/x
  3. Step 3: Cross multiply
    3,937x = 8,566 × 8,566
  4. Step 4: Simplify right side
    3,937x = 73,376,356
  5. Step 5: Solve for x
    x = 73,376,356/3,937
  6. Step 6: Final answer
    x = 18,637.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.