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Finding the Third Proportional to 5,354 and 11,855

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Solution

The third proportional to 5,354 and 11,855 is: 26,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354 : 11,855 = 11,855 : x
  2. Step 2: Convert to fraction form
    5,354/11,855 = 11,855/x
  3. Step 3: Cross multiply
    5,354x = 11,855 × 11,855
  4. Step 4: Simplify right side
    5,354x = 140,541,025
  5. Step 5: Solve for x
    x = 140,541,025/5,354
  6. Step 6: Final answer
    x = 26,249.72

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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.