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Finding the Third Proportional to 17,646 and 38,172

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Solution

The third proportional to 17,646 and 38,172 is: 82,574.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,646 : 38,172 = 38,172 : x
  2. Step 2: Convert to fraction form
    17,646/38,172 = 38,172/x
  3. Step 3: Cross multiply
    17,646x = 38,172 × 38,172
  4. Step 4: Simplify right side
    17,646x = 1,457,101,584
  5. Step 5: Solve for x
    x = 1,457,101,584/17,646
  6. Step 6: Final answer
    x = 82,574.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.