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Finding the Third Proportional to 3,846 and 6,900

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Solution

The third proportional to 3,846 and 6,900 is: 12,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846 : 6,900 = 6,900 : x
  2. Step 2: Convert to fraction form
    3,846/6,900 = 6,900/x
  3. Step 3: Cross multiply
    3,846x = 6,900 × 6,900
  4. Step 4: Simplify right side
    3,846x = 47,610,000
  5. Step 5: Solve for x
    x = 47,610,000/3,846
  6. Step 6: Final answer
    x = 12,379.10

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.