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Finding the Third Proportional to 4,223 and 5,637

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Solution

The third proportional to 4,223 and 5,637 is: 7,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,223 : 5,637 = 5,637 : x
  2. Step 2: Convert to fraction form
    4,223/5,637 = 5,637/x
  3. Step 3: Cross multiply
    4,223x = 5,637 × 5,637
  4. Step 4: Simplify right side
    4,223x = 31,775,769
  5. Step 5: Solve for x
    x = 31,775,769/4,223
  6. Step 6: Final answer
    x = 7,524.45

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.