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Finding the Fourth Proportional to 6,639.25, 9,958.88 and 2,022.25

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Solution

The fourth proportional to 6,639.25, 9,958.88 and 2,022.25 is: 3,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.25 : 9,958.88 = 2,022.25 : x
  2. Step 2: Convert to fraction form
    6,639.25/9,958.88 = 2,022.25/x
  3. Step 3: Cross multiply
    6,639.25x = 9,958.88 × 2,022.25
  4. Step 4: Simplify right side
    6,639.25x = 20,139,345.08
  5. Step 5: Solve for x
    x = 20,139,345.08/6,639.25
  6. Step 6: Final answer
    x = 3,033.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.