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Finding the Fourth Proportional to 18,516.96, 27,710.84 and 15,146.24

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Solution

The fourth proportional to 18,516.96, 27,710.84 and 15,146.24 is: 22,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.96 : 27,710.84 = 15,146.24 : x
  2. Step 2: Convert to fraction form
    18,516.96/27,710.84 = 15,146.24/x
  3. Step 3: Cross multiply
    18,516.96x = 27,710.84 × 15,146.24
  4. Step 4: Simplify right side
    18,516.96x = 419,715,033.24
  5. Step 5: Solve for x
    x = 419,715,033.24/18,516.96
  6. Step 6: Final answer
    x = 22,666.52

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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.