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Finding the Third Proportional to 4,385 and 9,622

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Solution

The third proportional to 4,385 and 9,622 is: 21,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385 : 9,622 = 9,622 : x
  2. Step 2: Convert to fraction form
    4,385/9,622 = 9,622/x
  3. Step 3: Cross multiply
    4,385x = 9,622 × 9,622
  4. Step 4: Simplify right side
    4,385x = 92,582,884
  5. Step 5: Solve for x
    x = 92,582,884/4,385
  6. Step 6: Final answer
    x = 21,113.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.