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Finding the Fourth Proportional to 18,464.36, 27,690.18 and 5,313.20

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Solution

The fourth proportional to 18,464.36, 27,690.18 and 5,313.20 is: 7,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.36 : 27,690.18 = 5,313.20 : x
  2. Step 2: Convert to fraction form
    18,464.36/27,690.18 = 5,313.20/x
  3. Step 3: Cross multiply
    18,464.36x = 27,690.18 × 5,313.20
  4. Step 4: Simplify right side
    18,464.36x = 147,123,464.38
  5. Step 5: Solve for x
    x = 147,123,464.38/18,464.36
  6. Step 6: Final answer
    x = 7,967.97

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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.