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Finding the Fourth Proportional to 31,339.58, 47,051.08 and 18,201.38

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Solution

The fourth proportional to 31,339.58, 47,051.08 and 18,201.38 is: 27,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.58 : 47,051.08 = 18,201.38 : x
  2. Step 2: Convert to fraction form
    31,339.58/47,051.08 = 18,201.38/x
  3. Step 3: Cross multiply
    31,339.58x = 47,051.08 × 18,201.38
  4. Step 4: Simplify right side
    31,339.58x = 856,394,305.73
  5. Step 5: Solve for x
    x = 856,394,305.73/31,339.58
  6. Step 6: Final answer
    x = 27,326.29

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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.