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Finding the Fourth Proportional to 18,400.31, 27,600.39 and 4,549.31

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Solution

The fourth proportional to 18,400.31, 27,600.39 and 4,549.31 is: 6,823.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.31 : 27,600.39 = 4,549.31 : x
  2. Step 2: Convert to fraction form
    18,400.31/27,600.39 = 4,549.31/x
  3. Step 3: Cross multiply
    18,400.31x = 27,600.39 × 4,549.31
  4. Step 4: Simplify right side
    18,400.31x = 125,562,592.23
  5. Step 5: Solve for x
    x = 125,562,592.23/18,400.31
  6. Step 6: Final answer
    x = 6,823.94

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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.