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Finding the Third Proportional to 5,728 and 11,828

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Solution

The third proportional to 5,728 and 11,828 is: 24,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728 : 11,828 = 11,828 : x
  2. Step 2: Convert to fraction form
    5,728/11,828 = 11,828/x
  3. Step 3: Cross multiply
    5,728x = 11,828 × 11,828
  4. Step 4: Simplify right side
    5,728x = 139,901,584
  5. Step 5: Solve for x
    x = 139,901,584/5,728
  6. Step 6: Final answer
    x = 24,424.16

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.