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Finding the Fourth Proportional to 18,317.53, 27,481.44 and 5,170.01

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Solution

The fourth proportional to 18,317.53, 27,481.44 and 5,170.01 is: 7,756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.53 : 27,481.44 = 5,170.01 : x
  2. Step 2: Convert to fraction form
    18,317.53/27,481.44 = 5,170.01/x
  3. Step 3: Cross multiply
    18,317.53x = 27,481.44 × 5,170.01
  4. Step 4: Simplify right side
    18,317.53x = 142,079,319.61
  5. Step 5: Solve for x
    x = 142,079,319.61/18,317.53
  6. Step 6: Final answer
    x = 7,756.47

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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.