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Finding the Third Proportional to 17,619 and 36,696

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Solution

The third proportional to 17,619 and 36,696 is: 76,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619 : 36,696 = 36,696 : x
  2. Step 2: Convert to fraction form
    17,619/36,696 = 36,696/x
  3. Step 3: Cross multiply
    17,619x = 36,696 × 36,696
  4. Step 4: Simplify right side
    17,619x = 1,346,596,416
  5. Step 5: Solve for x
    x = 1,346,596,416/17,619
  6. Step 6: Final answer
    x = 76,428.65

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.