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Finding the Third Proportional to 16,724 and 36,856

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Solution

The third proportional to 16,724 and 36,856 is: 81,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,724 : 36,856 = 36,856 : x
  2. Step 2: Convert to fraction form
    16,724/36,856 = 36,856/x
  3. Step 3: Cross multiply
    16,724x = 36,856 × 36,856
  4. Step 4: Simplify right side
    16,724x = 1,358,364,736
  5. Step 5: Solve for x
    x = 1,358,364,736/16,724
  6. Step 6: Final answer
    x = 81,222.48

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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.