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Finding the Fourth Proportional to 18,766.44, 25,883.22 and 13,099.32

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Solution

The fourth proportional to 18,766.44, 25,883.22 and 13,099.32 is: 18,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.44 : 25,883.22 = 13,099.32 : x
  2. Step 2: Convert to fraction form
    18,766.44/25,883.22 = 13,099.32/x
  3. Step 3: Cross multiply
    18,766.44x = 25,883.22 × 13,099.32
  4. Step 4: Simplify right side
    18,766.44x = 339,052,581.41
  5. Step 5: Solve for x
    x = 339,052,581.41/18,766.44
  6. Step 6: Final answer
    x = 18,066.96

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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.