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Finding the Third Proportional to 25,551 and 27,855

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Solution

The third proportional to 25,551 and 27,855 is: 30,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,551 : 27,855 = 27,855 : x
  2. Step 2: Convert to fraction form
    25,551/27,855 = 27,855/x
  3. Step 3: Cross multiply
    25,551x = 27,855 × 27,855
  4. Step 4: Simplify right side
    25,551x = 775,901,025
  5. Step 5: Solve for x
    x = 775,901,025/25,551
  6. Step 6: Final answer
    x = 30,366.76

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.