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Finding the Third Proportional to 4,223 and 6,556

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Solution

The third proportional to 4,223 and 6,556 is: 10,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,223 : 6,556 = 6,556 : x
  2. Step 2: Convert to fraction form
    4,223/6,556 = 6,556/x
  3. Step 3: Cross multiply
    4,223x = 6,556 × 6,556
  4. Step 4: Simplify right side
    4,223x = 42,981,136
  5. Step 5: Solve for x
    x = 42,981,136/4,223
  6. Step 6: Final answer
    x = 10,177.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.