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Finding the Fourth Proportional to 18,343.91, 27,515.87 and 9,576.77

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Solution

The fourth proportional to 18,343.91, 27,515.87 and 9,576.77 is: 14,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.91 : 27,515.87 = 9,576.77 : x
  2. Step 2: Convert to fraction form
    18,343.91/27,515.87 = 9,576.77/x
  3. Step 3: Cross multiply
    18,343.91x = 27,515.87 × 9,576.77
  4. Step 4: Simplify right side
    18,343.91x = 263,513,179.25
  5. Step 5: Solve for x
    x = 263,513,179.25/18,343.91
  6. Step 6: Final answer
    x = 14,365.16

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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.