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Finding the Fourth Proportional to 18,473.26, 27,702.57 and 10,687.54

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Solution

The fourth proportional to 18,473.26, 27,702.57 and 10,687.54 is: 16,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.26 : 27,702.57 = 10,687.54 : x
  2. Step 2: Convert to fraction form
    18,473.26/27,702.57 = 10,687.54/x
  3. Step 3: Cross multiply
    18,473.26x = 27,702.57 × 10,687.54
  4. Step 4: Simplify right side
    18,473.26x = 296,072,324.98
  5. Step 5: Solve for x
    x = 296,072,324.98/18,473.26
  6. Step 6: Final answer
    x = 16,027.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.