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Finding the Third Proportional to 3,855 and 4,413

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Solution

The third proportional to 3,855 and 4,413 is: 5,051.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855 : 4,413 = 4,413 : x
  2. Step 2: Convert to fraction form
    3,855/4,413 = 4,413/x
  3. Step 3: Cross multiply
    3,855x = 4,413 × 4,413
  4. Step 4: Simplify right side
    3,855x = 19,474,569
  5. Step 5: Solve for x
    x = 19,474,569/3,855
  6. Step 6: Final answer
    x = 5,051.77

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.