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Finding the Fourth Proportional to 4,849.92, 7,281.60 and 2,511.60

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Solution

The fourth proportional to 4,849.92, 7,281.60 and 2,511.60 is: 3,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.92 : 7,281.60 = 2,511.60 : x
  2. Step 2: Convert to fraction form
    4,849.92/7,281.60 = 2,511.60/x
  3. Step 3: Cross multiply
    4,849.92x = 7,281.60 × 2,511.60
  4. Step 4: Simplify right side
    4,849.92x = 18,288,466.56
  5. Step 5: Solve for x
    x = 18,288,466.56/4,849.92
  6. Step 6: Final answer
    x = 3,770.88

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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.