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Finding the Fourth Proportional to 18,349.80, 27,529.29 and 5,201.88

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Solution

The fourth proportional to 18,349.80, 27,529.29 and 5,201.88 is: 7,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.80 : 27,529.29 = 5,201.88 : x
  2. Step 2: Convert to fraction form
    18,349.80/27,529.29 = 5,201.88/x
  3. Step 3: Cross multiply
    18,349.80x = 27,529.29 × 5,201.88
  4. Step 4: Simplify right side
    18,349.80x = 143,204,063.07
  5. Step 5: Solve for x
    x = 143,204,063.07/18,349.80
  6. Step 6: Final answer
    x = 7,804.12

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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.