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Finding the Fourth Proportional to 3,715.91, 5,576.22 and 1,375.67

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Solution

The fourth proportional to 3,715.91, 5,576.22 and 1,375.67 is: 2,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.91 : 5,576.22 = 1,375.67 : x
  2. Step 2: Convert to fraction form
    3,715.91/5,576.22 = 1,375.67/x
  3. Step 3: Cross multiply
    3,715.91x = 5,576.22 × 1,375.67
  4. Step 4: Simplify right side
    3,715.91x = 7,671,010.69
  5. Step 5: Solve for x
    x = 7,671,010.69/3,715.91
  6. Step 6: Final answer
    x = 2,064.37

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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.