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Finding the Fourth Proportional to 4,949.82, 7,424.95 and 2,756.89

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Solution

The fourth proportional to 4,949.82, 7,424.95 and 2,756.89 is: 4,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.82 : 7,424.95 = 2,756.89 : x
  2. Step 2: Convert to fraction form
    4,949.82/7,424.95 = 2,756.89/x
  3. Step 3: Cross multiply
    4,949.82x = 7,424.95 × 2,756.89
  4. Step 4: Simplify right side
    4,949.82x = 20,469,770.41
  5. Step 5: Solve for x
    x = 20,469,770.41/4,949.82
  6. Step 6: Final answer
    x = 4,135.46

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1.5x scale

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.