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Finding the Fourth Proportional to 11,170.51, 16,745.13 and 4,148.65

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Solution

The fourth proportional to 11,170.51, 16,745.13 and 4,148.65 is: 6,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.51 : 16,745.13 = 4,148.65 : x
  2. Step 2: Convert to fraction form
    11,170.51/16,745.13 = 4,148.65/x
  3. Step 3: Cross multiply
    11,170.51x = 16,745.13 × 4,148.65
  4. Step 4: Simplify right side
    11,170.51x = 69,469,704.51
  5. Step 5: Solve for x
    x = 69,469,704.51/11,170.51
  6. Step 6: Final answer
    x = 6,219.03

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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.