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Finding the Third Proportional to 3,628 and 5,442

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Solution

The third proportional to 3,628 and 5,442 is: 8,163

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628 : 5,442 = 5,442 : x
  2. Step 2: Convert to fraction form
    3,628/5,442 = 5,442/x
  3. Step 3: Cross multiply
    3,628x = 5,442 × 5,442
  4. Step 4: Simplify right side
    3,628x = 29,615,364
  5. Step 5: Solve for x
    x = 29,615,364/3,628
  6. Step 6: Final answer
    x = 8,163

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.