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Finding the Fourth Proportional to 18,358.41, 27,538.23 and 11,259.17

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Solution

The fourth proportional to 18,358.41, 27,538.23 and 11,259.17 is: 16,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.41 : 27,538.23 = 11,259.17 : x
  2. Step 2: Convert to fraction form
    18,358.41/27,538.23 = 11,259.17/x
  3. Step 3: Cross multiply
    18,358.41x = 27,538.23 × 11,259.17
  4. Step 4: Simplify right side
    18,358.41x = 310,057,475.38
  5. Step 5: Solve for x
    x = 310,057,475.38/18,358.41
  6. Step 6: Final answer
    x = 16,889.12

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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.