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Finding the Third Proportional to 3,156 and 6,627

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Solution

The third proportional to 3,156 and 6,627 is: 13,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156 : 6,627 = 6,627 : x
  2. Step 2: Convert to fraction form
    3,156/6,627 = 6,627/x
  3. Step 3: Cross multiply
    3,156x = 6,627 × 6,627
  4. Step 4: Simplify right side
    3,156x = 43,917,129
  5. Step 5: Solve for x
    x = 43,917,129/3,156
  6. Step 6: Final answer
    x = 13,915.44

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.