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Finding the Fourth Proportional to 18,464.80, 27,697.24 and 7,372.39

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Solution

The fourth proportional to 18,464.80, 27,697.24 and 7,372.39 is: 11,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.80 : 27,697.24 = 7,372.39 : x
  2. Step 2: Convert to fraction form
    18,464.80/27,697.24 = 7,372.39/x
  3. Step 3: Cross multiply
    18,464.80x = 27,697.24 × 7,372.39
  4. Step 4: Simplify right side
    18,464.80x = 204,194,698.29
  5. Step 5: Solve for x
    x = 204,194,698.29/18,464.80
  6. Step 6: Final answer
    x = 11,058.60

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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.