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Finding the Third Proportional to 2,878 and 4,893

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Solution

The third proportional to 2,878 and 4,893 is: 8,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878 : 4,893 = 4,893 : x
  2. Step 2: Convert to fraction form
    2,878/4,893 = 4,893/x
  3. Step 3: Cross multiply
    2,878x = 4,893 × 4,893
  4. Step 4: Simplify right side
    2,878x = 23,941,449
  5. Step 5: Solve for x
    x = 23,941,449/2,878
  6. Step 6: Final answer
    x = 8,318.78

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.