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Finding the Fourth Proportional to 17,969.58, 26,958.47 and 5,491.38

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Solution

The fourth proportional to 17,969.58, 26,958.47 and 5,491.38 is: 8,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.58 : 26,958.47 = 5,491.38 : x
  2. Step 2: Convert to fraction form
    17,969.58/26,958.47 = 5,491.38/x
  3. Step 3: Cross multiply
    17,969.58x = 26,958.47 × 5,491.38
  4. Step 4: Simplify right side
    17,969.58x = 148,039,155.87
  5. Step 5: Solve for x
    x = 148,039,155.87/17,969.58
  6. Step 6: Final answer
    x = 8,238.32

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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.