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Finding the Fourth Proportional to 7,398.82, 11,103.69 and 3,503.22

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Solution

The fourth proportional to 7,398.82, 11,103.69 and 3,503.22 is: 5,257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.82 : 11,103.69 = 3,503.22 : x
  2. Step 2: Convert to fraction form
    7,398.82/11,103.69 = 3,503.22/x
  3. Step 3: Cross multiply
    7,398.82x = 11,103.69 × 3,503.22
  4. Step 4: Simplify right side
    7,398.82x = 38,898,668.88
  5. Step 5: Solve for x
    x = 38,898,668.88/7,398.82
  6. Step 6: Final answer
    x = 5,257.42

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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.