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Finding the Third Proportional to 11,620 and 25,828

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Solution

The third proportional to 11,620 and 25,828 is: 57,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620 : 25,828 = 25,828 : x
  2. Step 2: Convert to fraction form
    11,620/25,828 = 25,828/x
  3. Step 3: Cross multiply
    11,620x = 25,828 × 25,828
  4. Step 4: Simplify right side
    11,620x = 667,085,584
  5. Step 5: Solve for x
    x = 667,085,584/11,620
  6. Step 6: Final answer
    x = 57,408.40

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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.