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Finding the Fourth Proportional to 6,329.78, 9,500.62 and 3,212.02

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Solution

The fourth proportional to 6,329.78, 9,500.62 and 3,212.02 is: 4,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,329.78 : 9,500.62 = 3,212.02 : x
  2. Step 2: Convert to fraction form
    6,329.78/9,500.62 = 3,212.02/x
  3. Step 3: Cross multiply
    6,329.78x = 9,500.62 × 3,212.02
  4. Step 4: Simplify right side
    6,329.78x = 30,516,157.70
  5. Step 5: Solve for x
    x = 30,516,157.70/6,329.78
  6. Step 6: Final answer
    x = 4,821.05

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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.