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Finding the Third Proportional to 4,121 and 6,374

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Solution

The third proportional to 4,121 and 6,374 is: 9,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121 : 6,374 = 6,374 : x
  2. Step 2: Convert to fraction form
    4,121/6,374 = 6,374/x
  3. Step 3: Cross multiply
    4,121x = 6,374 × 6,374
  4. Step 4: Simplify right side
    4,121x = 40,627,876
  5. Step 5: Solve for x
    x = 40,627,876/4,121
  6. Step 6: Final answer
    x = 9,858.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.