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Finding the Third Proportional to 4,970 and 6,622

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Solution

The third proportional to 4,970 and 6,622 is: 8,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970 : 6,622 = 6,622 : x
  2. Step 2: Convert to fraction form
    4,970/6,622 = 6,622/x
  3. Step 3: Cross multiply
    4,970x = 6,622 × 6,622
  4. Step 4: Simplify right side
    4,970x = 43,850,884
  5. Step 5: Solve for x
    x = 43,850,884/4,970
  6. Step 6: Final answer
    x = 8,823.12

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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.