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Finding the Fourth Proportional to 2,997.91, 4,137.14 and 1,671.67

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Solution

The fourth proportional to 2,997.91, 4,137.14 and 1,671.67 is: 2,306.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.91 : 4,137.14 = 1,671.67 : x
  2. Step 2: Convert to fraction form
    2,997.91/4,137.14 = 1,671.67/x
  3. Step 3: Cross multiply
    2,997.91x = 4,137.14 × 1,671.67
  4. Step 4: Simplify right side
    2,997.91x = 6,915,942.17
  5. Step 5: Solve for x
    x = 6,915,942.17/2,997.91
  6. Step 6: Final answer
    x = 2,306.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.