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Finding the Third Proportional to 16,619 and 36,520

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Solution

The third proportional to 16,619 and 36,520 is: 80,252.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,619 : 36,520 = 36,520 : x
  2. Step 2: Convert to fraction form
    16,619/36,520 = 36,520/x
  3. Step 3: Cross multiply
    16,619x = 36,520 × 36,520
  4. Step 4: Simplify right side
    16,619x = 1,333,710,400
  5. Step 5: Solve for x
    x = 1,333,710,400/16,619
  6. Step 6: Final answer
    x = 80,252.15

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.