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Finding the Fourth Proportional to 5,092.40, 7,622.40 and 3,634.40

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Solution

The fourth proportional to 5,092.40, 7,622.40 and 3,634.40 is: 5,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,092.40 : 7,622.40 = 3,634.40 : x
  2. Step 2: Convert to fraction form
    5,092.40/7,622.40 = 3,634.40/x
  3. Step 3: Cross multiply
    5,092.40x = 7,622.40 × 3,634.40
  4. Step 4: Simplify right side
    5,092.40x = 27,702,850.56
  5. Step 5: Solve for x
    x = 27,702,850.56/5,092.40
  6. Step 6: Final answer
    x = 5,440.04

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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.