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Finding the Third Proportional to 4,182 and 8,644

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Solution

The third proportional to 4,182 and 8,644 is: 17,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,182 : 8,644 = 8,644 : x
  2. Step 2: Convert to fraction form
    4,182/8,644 = 8,644/x
  3. Step 3: Cross multiply
    4,182x = 8,644 × 8,644
  4. Step 4: Simplify right side
    4,182x = 74,718,736
  5. Step 5: Solve for x
    x = 74,718,736/4,182
  6. Step 6: Final answer
    x = 17,866.75

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.