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Finding the Fourth Proportional to 18,374.72, 27,557.62 and 8,504.60

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Solution

The fourth proportional to 18,374.72, 27,557.62 and 8,504.60 is: 12,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.72 : 27,557.62 = 8,504.60 : x
  2. Step 2: Convert to fraction form
    18,374.72/27,557.62 = 8,504.60/x
  3. Step 3: Cross multiply
    18,374.72x = 27,557.62 × 8,504.60
  4. Step 4: Simplify right side
    18,374.72x = 234,366,376.00
  5. Step 5: Solve for x
    x = 234,366,376.00/18,374.72
  6. Step 6: Final answer
    x = 12,754.83

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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.