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Finding the Fourth Proportional to 13,372.08, 18,450.36 and 8,067.12

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Solution

The fourth proportional to 13,372.08, 18,450.36 and 8,067.12 is: 11,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.08 : 18,450.36 = 8,067.12 : x
  2. Step 2: Convert to fraction form
    13,372.08/18,450.36 = 8,067.12/x
  3. Step 3: Cross multiply
    13,372.08x = 18,450.36 × 8,067.12
  4. Step 4: Simplify right side
    13,372.08x = 148,841,268.16
  5. Step 5: Solve for x
    x = 148,841,268.16/13,372.08
  6. Step 6: Final answer
    x = 11,130.75

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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.