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Finding the Fourth Proportional to 7,793.32, 11,688.02 and 3,629.38

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Solution

The fourth proportional to 7,793.32, 11,688.02 and 3,629.38 is: 5,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.32 : 11,688.02 = 3,629.38 : x
  2. Step 2: Convert to fraction form
    7,793.32/11,688.02 = 3,629.38/x
  3. Step 3: Cross multiply
    7,793.32x = 11,688.02 × 3,629.38
  4. Step 4: Simplify right side
    7,793.32x = 42,420,266.03
  5. Step 5: Solve for x
    x = 42,420,266.03/7,793.32
  6. Step 6: Final answer
    x = 5,443.16

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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.