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Finding the Third Proportional to 3,049.50 and 4,320.75

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Solution

The third proportional to 3,049.50 and 4,320.75 is: 6,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.50 : 4,320.75 = 4,320.75 : x
  2. Step 2: Convert to fraction form
    3,049.50/4,320.75 = 4,320.75/x
  3. Step 3: Cross multiply
    3,049.50x = 4,320.75 × 4,320.75
  4. Step 4: Simplify right side
    3,049.50x = 18,668,880.56
  5. Step 5: Solve for x
    x = 18,668,880.56/3,049.50
  6. Step 6: Final answer
    x = 6,121.95

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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.