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Finding the Third Proportional to 9,904 and 22,021

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Solution

The third proportional to 9,904 and 22,021 is: 48,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904 : 22,021 = 22,021 : x
  2. Step 2: Convert to fraction form
    9,904/22,021 = 22,021/x
  3. Step 3: Cross multiply
    9,904x = 22,021 × 22,021
  4. Step 4: Simplify right side
    9,904x = 484,924,441
  5. Step 5: Solve for x
    x = 484,924,441/9,904
  6. Step 6: Final answer
    x = 48,962.48

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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.