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Finding the Third Proportional to 3,956 and 6,105

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Solution

The third proportional to 3,956 and 6,105 is: 9,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956 : 6,105 = 6,105 : x
  2. Step 2: Convert to fraction form
    3,956/6,105 = 6,105/x
  3. Step 3: Cross multiply
    3,956x = 6,105 × 6,105
  4. Step 4: Simplify right side
    3,956x = 37,271,025
  5. Step 5: Solve for x
    x = 37,271,025/3,956
  6. Step 6: Final answer
    x = 9,421.39

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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.