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Finding the Third Proportional to 3,179.44 and 4,922.81

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Solution

The third proportional to 3,179.44 and 4,922.81 is: 7,622.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.44 : 4,922.81 = 4,922.81 : x
  2. Step 2: Convert to fraction form
    3,179.44/4,922.81 = 4,922.81/x
  3. Step 3: Cross multiply
    3,179.44x = 4,922.81 × 4,922.81
  4. Step 4: Simplify right side
    3,179.44x = 24,234,082.91
  5. Step 5: Solve for x
    x = 24,234,082.91/3,179.44
  6. Step 6: Final answer
    x = 7,622.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.