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Finding the Fourth Proportional to 18,601.62, 27,895.56 and 6,118

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Solution

The fourth proportional to 18,601.62, 27,895.56 and 6,118 is: 9,174.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.62 : 27,895.56 = 6,118 : x
  2. Step 2: Convert to fraction form
    18,601.62/27,895.56 = 6,118/x
  3. Step 3: Cross multiply
    18,601.62x = 27,895.56 × 6,118
  4. Step 4: Simplify right side
    18,601.62x = 170,665,036.08
  5. Step 5: Solve for x
    x = 170,665,036.08/18,601.62
  6. Step 6: Final answer
    x = 9,174.74

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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.