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Finding the Fourth Proportional to 7,369.80, 11,057.22 and 3,474.48

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Solution

The fourth proportional to 7,369.80, 11,057.22 and 3,474.48 is: 5,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.80 : 11,057.22 = 3,474.48 : x
  2. Step 2: Convert to fraction form
    7,369.80/11,057.22 = 3,474.48/x
  3. Step 3: Cross multiply
    7,369.80x = 11,057.22 × 3,474.48
  4. Step 4: Simplify right side
    7,369.80x = 38,418,089.75
  5. Step 5: Solve for x
    x = 38,418,089.75/7,369.80
  6. Step 6: Final answer
    x = 5,212.91

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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.