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Finding the Third Proportional to 4,202 and 5,351

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Solution

The third proportional to 4,202 and 5,351 is: 6,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,202 : 5,351 = 5,351 : x
  2. Step 2: Convert to fraction form
    4,202/5,351 = 5,351/x
  3. Step 3: Cross multiply
    4,202x = 5,351 × 5,351
  4. Step 4: Simplify right side
    4,202x = 28,633,201
  5. Step 5: Solve for x
    x = 28,633,201/4,202
  6. Step 6: Final answer
    x = 6,814.18

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.