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Finding the Third Proportional to 16,879.78 and 36,376.22

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Solution

The third proportional to 16,879.78 and 36,376.22 is: 78,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.78 : 36,376.22 = 36,376.22 : x
  2. Step 2: Convert to fraction form
    16,879.78/36,376.22 = 36,376.22/x
  3. Step 3: Cross multiply
    16,879.78x = 36,376.22 × 36,376.22
  4. Step 4: Simplify right side
    16,879.78x = 1,323,229,290.55
  5. Step 5: Solve for x
    x = 1,323,229,290.55/16,879.78
  6. Step 6: Final answer
    x = 78,391.38

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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.