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Finding the Fourth Proportional to 4,974.86, 7,462.30 and 2,511.76

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Solution

The fourth proportional to 4,974.86, 7,462.30 and 2,511.76 is: 3,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.86 : 7,462.30 = 2,511.76 : x
  2. Step 2: Convert to fraction form
    4,974.86/7,462.30 = 2,511.76/x
  3. Step 3: Cross multiply
    4,974.86x = 7,462.30 × 2,511.76
  4. Step 4: Simplify right side
    4,974.86x = 18,743,506.65
  5. Step 5: Solve for x
    x = 18,743,506.65/4,974.86
  6. Step 6: Final answer
    x = 3,767.65

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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.