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Finding the Third Proportional to 9,992 and 21,523

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Solution

The third proportional to 9,992 and 21,523 is: 46,361.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992 : 21,523 = 21,523 : x
  2. Step 2: Convert to fraction form
    9,992/21,523 = 21,523/x
  3. Step 3: Cross multiply
    9,992x = 21,523 × 21,523
  4. Step 4: Simplify right side
    9,992x = 463,239,529
  5. Step 5: Solve for x
    x = 463,239,529/9,992
  6. Step 6: Final answer
    x = 46,361.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.