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Finding the Third Proportional to 9,372 and 20,816

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Solution

The third proportional to 9,372 and 20,816 is: 46,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372 : 20,816 = 20,816 : x
  2. Step 2: Convert to fraction form
    9,372/20,816 = 20,816/x
  3. Step 3: Cross multiply
    9,372x = 20,816 × 20,816
  4. Step 4: Simplify right side
    9,372x = 433,305,856
  5. Step 5: Solve for x
    x = 433,305,856/9,372
  6. Step 6: Final answer
    x = 46,234.09

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.