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Finding the Third Proportional to 4,805 and 10,378

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Solution

The third proportional to 4,805 and 10,378 is: 22,414.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805 : 10,378 = 10,378 : x
  2. Step 2: Convert to fraction form
    4,805/10,378 = 10,378/x
  3. Step 3: Cross multiply
    4,805x = 10,378 × 10,378
  4. Step 4: Simplify right side
    4,805x = 107,702,884
  5. Step 5: Solve for x
    x = 107,702,884/4,805
  6. Step 6: Final answer
    x = 22,414.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.