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Finding the Third Proportional to 2,878 and 6,206

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Solution

The third proportional to 2,878 and 6,206 is: 13,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878 : 6,206 = 6,206 : x
  2. Step 2: Convert to fraction form
    2,878/6,206 = 6,206/x
  3. Step 3: Cross multiply
    2,878x = 6,206 × 6,206
  4. Step 4: Simplify right side
    2,878x = 38,514,436
  5. Step 5: Solve for x
    x = 38,514,436/2,878
  6. Step 6: Final answer
    x = 13,382.36

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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.