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Finding the Fourth Proportional to 7,381.91, 11,069.24 and 2,449.89

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Solution

The fourth proportional to 7,381.91, 11,069.24 and 2,449.89 is: 3,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.91 : 11,069.24 = 2,449.89 : x
  2. Step 2: Convert to fraction form
    7,381.91/11,069.24 = 2,449.89/x
  3. Step 3: Cross multiply
    7,381.91x = 11,069.24 × 2,449.89
  4. Step 4: Simplify right side
    7,381.91x = 27,118,408.13
  5. Step 5: Solve for x
    x = 27,118,408.13/7,381.91
  6. Step 6: Final answer
    x = 3,673.63

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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.