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Finding the Fourth Proportional to 4,981.77, 7,469.18 and 2,206.94

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Solution

The fourth proportional to 4,981.77, 7,469.18 and 2,206.94 is: 3,308.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.77 : 7,469.18 = 2,206.94 : x
  2. Step 2: Convert to fraction form
    4,981.77/7,469.18 = 2,206.94/x
  3. Step 3: Cross multiply
    4,981.77x = 7,469.18 × 2,206.94
  4. Step 4: Simplify right side
    4,981.77x = 16,483,983.73
  5. Step 5: Solve for x
    x = 16,483,983.73/4,981.77
  6. Step 6: Final answer
    x = 3,308.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.