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Finding the Third Proportional to 4,486 and 10,855

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Solution

The third proportional to 4,486 and 10,855 is: 26,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486 : 10,855 = 10,855 : x
  2. Step 2: Convert to fraction form
    4,486/10,855 = 10,855/x
  3. Step 3: Cross multiply
    4,486x = 10,855 × 10,855
  4. Step 4: Simplify right side
    4,486x = 117,831,025
  5. Step 5: Solve for x
    x = 117,831,025/4,486
  6. Step 6: Final answer
    x = 26,266.39

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.