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Finding the Third Proportional to 11,858 and 25,355

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Solution

The third proportional to 11,858 and 25,355 is: 54,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858 : 25,355 = 25,355 : x
  2. Step 2: Convert to fraction form
    11,858/25,355 = 25,355/x
  3. Step 3: Cross multiply
    11,858x = 25,355 × 25,355
  4. Step 4: Simplify right side
    11,858x = 642,876,025
  5. Step 5: Solve for x
    x = 642,876,025/11,858
  6. Step 6: Final answer
    x = 54,214.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.