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Finding the Fourth Proportional to 18,474.20, 27,702.22 and 10,575.52

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Solution

The fourth proportional to 18,474.20, 27,702.22 and 10,575.52 is: 15,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.20 : 27,702.22 = 10,575.52 : x
  2. Step 2: Convert to fraction form
    18,474.20/27,702.22 = 10,575.52/x
  3. Step 3: Cross multiply
    18,474.20x = 27,702.22 × 10,575.52
  4. Step 4: Simplify right side
    18,474.20x = 292,965,381.65
  5. Step 5: Solve for x
    x = 292,965,381.65/18,474.20
  6. Step 6: Final answer
    x = 15,858.08

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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.