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Finding the Third Proportional to 855 and 2,307

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Solution

The third proportional to 855 and 2,307 is: 6,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    855 : 2,307 = 2,307 : x
  2. Step 2: Convert to fraction form
    855/2,307 = 2,307/x
  3. Step 3: Cross multiply
    855x = 2,307 × 2,307
  4. Step 4: Simplify right side
    855x = 5,322,249
  5. Step 5: Solve for x
    x = 5,322,249/855
  6. Step 6: Final answer
    x = 6,224.85

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.