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Finding the Fourth Proportional to 19,367.39, 26,753.35 and 15,171.54

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Solution

The fourth proportional to 19,367.39, 26,753.35 and 15,171.54 is: 20,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.39 : 26,753.35 = 15,171.54 : x
  2. Step 2: Convert to fraction form
    19,367.39/26,753.35 = 15,171.54/x
  3. Step 3: Cross multiply
    19,367.39x = 26,753.35 × 15,171.54
  4. Step 4: Simplify right side
    19,367.39x = 405,889,519.66
  5. Step 5: Solve for x
    x = 405,889,519.66/19,367.39
  6. Step 6: Final answer
    x = 20,957.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.