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Finding the Fourth Proportional to 7,295.21, 10,938.02 and 3,599.85

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Solution

The fourth proportional to 7,295.21, 10,938.02 and 3,599.85 is: 5,397.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,295.21 : 10,938.02 = 3,599.85 : x
  2. Step 2: Convert to fraction form
    7,295.21/10,938.02 = 3,599.85/x
  3. Step 3: Cross multiply
    7,295.21x = 10,938.02 × 3,599.85
  4. Step 4: Simplify right side
    7,295.21x = 39,375,213.30
  5. Step 5: Solve for x
    x = 39,375,213.30/7,295.21
  6. Step 6: Final answer
    x = 5,397.41

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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.