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Finding the Fourth Proportional to 18,554.89, 27,839.18 and 8,697.37

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Solution

The fourth proportional to 18,554.89, 27,839.18 and 8,697.37 is: 13,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554.89 : 27,839.18 = 8,697.37 : x
  2. Step 2: Convert to fraction form
    18,554.89/27,839.18 = 8,697.37/x
  3. Step 3: Cross multiply
    18,554.89x = 27,839.18 × 8,697.37
  4. Step 4: Simplify right side
    18,554.89x = 242,127,605.47
  5. Step 5: Solve for x
    x = 242,127,605.47/18,554.89
  6. Step 6: Final answer
    x = 13,049.26

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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.