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Finding the Third Proportional to 3,319 and 4,722

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Solution

The third proportional to 3,319 and 4,722 is: 6,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319 : 4,722 = 4,722 : x
  2. Step 2: Convert to fraction form
    3,319/4,722 = 4,722/x
  3. Step 3: Cross multiply
    3,319x = 4,722 × 4,722
  4. Step 4: Simplify right side
    3,319x = 22,297,284
  5. Step 5: Solve for x
    x = 22,297,284/3,319
  6. Step 6: Final answer
    x = 6,718.07

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.