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Finding the Fourth Proportional to 11,290.26, 16,940.52 and 4,720.62

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Solution

The fourth proportional to 11,290.26, 16,940.52 and 4,720.62 is: 7,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.26 : 16,940.52 = 4,720.62 : x
  2. Step 2: Convert to fraction form
    11,290.26/16,940.52 = 4,720.62/x
  3. Step 3: Cross multiply
    11,290.26x = 16,940.52 × 4,720.62
  4. Step 4: Simplify right side
    11,290.26x = 79,969,757.52
  5. Step 5: Solve for x
    x = 79,969,757.52/11,290.26
  6. Step 6: Final answer
    x = 7,083.07

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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.