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Finding the Fourth Proportional to 18,466.64, 27,682.89 and 7,370.63

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Solution

The fourth proportional to 18,466.64, 27,682.89 and 7,370.63 is: 11,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.64 : 27,682.89 = 7,370.63 : x
  2. Step 2: Convert to fraction form
    18,466.64/27,682.89 = 7,370.63/x
  3. Step 3: Cross multiply
    18,466.64x = 27,682.89 × 7,370.63
  4. Step 4: Simplify right side
    18,466.64x = 204,040,201.11
  5. Step 5: Solve for x
    x = 204,040,201.11/18,466.64
  6. Step 6: Final answer
    x = 11,049.13

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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.