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Finding the Third Proportional to 4,005 and 6,223

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Solution

The third proportional to 4,005 and 6,223 is: 9,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005 : 6,223 = 6,223 : x
  2. Step 2: Convert to fraction form
    4,005/6,223 = 6,223/x
  3. Step 3: Cross multiply
    4,005x = 6,223 × 6,223
  4. Step 4: Simplify right side
    4,005x = 38,725,729
  5. Step 5: Solve for x
    x = 38,725,729/4,005
  6. Step 6: Final answer
    x = 9,669.35

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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.