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Finding the Fourth Proportional to 7,494.81, 11,247.84 and 2,819.43

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Solution

The fourth proportional to 7,494.81, 11,247.84 and 2,819.43 is: 4,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,494.81 : 11,247.84 = 2,819.43 : x
  2. Step 2: Convert to fraction form
    7,494.81/11,247.84 = 2,819.43/x
  3. Step 3: Cross multiply
    7,494.81x = 11,247.84 × 2,819.43
  4. Step 4: Simplify right side
    7,494.81x = 31,712,497.53
  5. Step 5: Solve for x
    x = 31,712,497.53/7,494.81
  6. Step 6: Final answer
    x = 4,231.26

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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.