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Finding the Third Proportional to 7,724 and 17,092

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Solution

The third proportional to 7,724 and 17,092 is: 37,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724 : 17,092 = 17,092 : x
  2. Step 2: Convert to fraction form
    7,724/17,092 = 17,092/x
  3. Step 3: Cross multiply
    7,724x = 17,092 × 17,092
  4. Step 4: Simplify right side
    7,724x = 292,136,464
  5. Step 5: Solve for x
    x = 292,136,464/7,724
  6. Step 6: Final answer
    x = 37,821.91

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.