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Finding the Third Proportional to 6,646 and 9,243

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Solution

The third proportional to 6,646 and 9,243 is: 12,854.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646 : 9,243 = 9,243 : x
  2. Step 2: Convert to fraction form
    6,646/9,243 = 9,243/x
  3. Step 3: Cross multiply
    6,646x = 9,243 × 9,243
  4. Step 4: Simplify right side
    6,646x = 85,433,049
  5. Step 5: Solve for x
    x = 85,433,049/6,646
  6. Step 6: Final answer
    x = 12,854.81

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.