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Finding the Fourth Proportional to 7,379.66, 11,064.18 and 3,481.94

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Solution

The fourth proportional to 7,379.66, 11,064.18 and 3,481.94 is: 5,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.66 : 11,064.18 = 3,481.94 : x
  2. Step 2: Convert to fraction form
    7,379.66/11,064.18 = 3,481.94/x
  3. Step 3: Cross multiply
    7,379.66x = 11,064.18 × 3,481.94
  4. Step 4: Simplify right side
    7,379.66x = 38,524,810.91
  5. Step 5: Solve for x
    x = 38,524,810.91/7,379.66
  6. Step 6: Final answer
    x = 5,220.40

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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.