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Finding the Third Proportional to 17,616 and 36,690

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Solution

The third proportional to 17,616 and 36,690 is: 76,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,616 : 36,690 = 36,690 : x
  2. Step 2: Convert to fraction form
    17,616/36,690 = 36,690/x
  3. Step 3: Cross multiply
    17,616x = 36,690 × 36,690
  4. Step 4: Simplify right side
    17,616x = 1,346,156,100
  5. Step 5: Solve for x
    x = 1,346,156,100/17,616
  6. Step 6: Final answer
    x = 76,416.67

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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.