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Finding the Fourth Proportional to 19,912.65, 27,475.03 and 11,524.29

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Solution

The fourth proportional to 19,912.65, 27,475.03 and 11,524.29 is: 15,900.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.65 : 27,475.03 = 11,524.29 : x
  2. Step 2: Convert to fraction form
    19,912.65/27,475.03 = 11,524.29/x
  3. Step 3: Cross multiply
    19,912.65x = 27,475.03 × 11,524.29
  4. Step 4: Simplify right side
    19,912.65x = 316,630,076.10
  5. Step 5: Solve for x
    x = 316,630,076.10/19,912.65
  6. Step 6: Final answer
    x = 15,900.96

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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.