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Finding the Fourth Proportional to 18,555.65, 27,836.39 and 6,072.74

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Solution

The fourth proportional to 18,555.65, 27,836.39 and 6,072.74 is: 9,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.65 : 27,836.39 = 6,072.74 : x
  2. Step 2: Convert to fraction form
    18,555.65/27,836.39 = 6,072.74/x
  3. Step 3: Cross multiply
    18,555.65x = 27,836.39 × 6,072.74
  4. Step 4: Simplify right side
    18,555.65x = 169,043,159.01
  5. Step 5: Solve for x
    x = 169,043,159.01/18,555.65
  6. Step 6: Final answer
    x = 9,110.06

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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.