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Finding the Third Proportional to 2,412 and 4,878

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Solution

The third proportional to 2,412 and 4,878 is: 9,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412 : 4,878 = 4,878 : x
  2. Step 2: Convert to fraction form
    2,412/4,878 = 4,878/x
  3. Step 3: Cross multiply
    2,412x = 4,878 × 4,878
  4. Step 4: Simplify right side
    2,412x = 23,794,884
  5. Step 5: Solve for x
    x = 23,794,884/2,412
  6. Step 6: Final answer
    x = 9,865.21

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.