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Finding the Fourth Proportional to 18,453.84, 27,679.98 and 8,589.72

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Solution

The fourth proportional to 18,453.84, 27,679.98 and 8,589.72 is: 12,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.84 : 27,679.98 = 8,589.72 : x
  2. Step 2: Convert to fraction form
    18,453.84/27,679.98 = 8,589.72/x
  3. Step 3: Cross multiply
    18,453.84x = 27,679.98 × 8,589.72
  4. Step 4: Simplify right side
    18,453.84x = 237,763,277.81
  5. Step 5: Solve for x
    x = 237,763,277.81/18,453.84
  6. Step 6: Final answer
    x = 12,884.22

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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.