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Finding the Third Proportional to 5,622 and 8,605

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Solution

The third proportional to 5,622 and 8,605 is: 13,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622 : 8,605 = 8,605 : x
  2. Step 2: Convert to fraction form
    5,622/8,605 = 8,605/x
  3. Step 3: Cross multiply
    5,622x = 8,605 × 8,605
  4. Step 4: Simplify right side
    5,622x = 74,046,025
  5. Step 5: Solve for x
    x = 74,046,025/5,622
  6. Step 6: Final answer
    x = 13,170.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.