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Finding the Fourth Proportional to 16,760.74, 25,138.41 and 5,667.21

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Solution

The fourth proportional to 16,760.74, 25,138.41 and 5,667.21 is: 8,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,760.74 : 25,138.41 = 5,667.21 : x
  2. Step 2: Convert to fraction form
    16,760.74/25,138.41 = 5,667.21/x
  3. Step 3: Cross multiply
    16,760.74x = 25,138.41 × 5,667.21
  4. Step 4: Simplify right side
    16,760.74x = 142,464,648.54
  5. Step 5: Solve for x
    x = 142,464,648.54/16,760.74
  6. Step 6: Final answer
    x = 8,499.90

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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.