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Finding the Third Proportional to 2,556 and 3,934

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Solution

The third proportional to 2,556 and 3,934 is: 6,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556 : 3,934 = 3,934 : x
  2. Step 2: Convert to fraction form
    2,556/3,934 = 3,934/x
  3. Step 3: Cross multiply
    2,556x = 3,934 × 3,934
  4. Step 4: Simplify right side
    2,556x = 15,476,356
  5. Step 5: Solve for x
    x = 15,476,356/2,556
  6. Step 6: Final answer
    x = 6,054.91

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.