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Finding the Fourth Proportional to 8,951.99, 12,352.80 and 5,174.85

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Solution

The fourth proportional to 8,951.99, 12,352.80 and 5,174.85 is: 7,140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.99 : 12,352.80 = 5,174.85 : x
  2. Step 2: Convert to fraction form
    8,951.99/12,352.80 = 5,174.85/x
  3. Step 3: Cross multiply
    8,951.99x = 12,352.80 × 5,174.85
  4. Step 4: Simplify right side
    8,951.99x = 63,923,887.08
  5. Step 5: Solve for x
    x = 63,923,887.08/8,951.99
  6. Step 6: Final answer
    x = 7,140.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.