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Finding the Fourth Proportional to 18,551.92, 25,606.40 and 11,474.32

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Solution

The fourth proportional to 18,551.92, 25,606.40 and 11,474.32 is: 15,837.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.92 : 25,606.40 = 11,474.32 : x
  2. Step 2: Convert to fraction form
    18,551.92/25,606.40 = 11,474.32/x
  3. Step 3: Cross multiply
    18,551.92x = 25,606.40 × 11,474.32
  4. Step 4: Simplify right side
    18,551.92x = 293,816,027.65
  5. Step 5: Solve for x
    x = 293,816,027.65/18,551.92
  6. Step 6: Final answer
    x = 15,837.50

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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.