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Finding the Fourth Proportional to 18,058.69, 27,084.18 and 6,961.69

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Solution

The fourth proportional to 18,058.69, 27,084.18 and 6,961.69 is: 10,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.69 : 27,084.18 = 6,961.69 : x
  2. Step 2: Convert to fraction form
    18,058.69/27,084.18 = 6,961.69/x
  3. Step 3: Cross multiply
    18,058.69x = 27,084.18 × 6,961.69
  4. Step 4: Simplify right side
    18,058.69x = 188,551,665.06
  5. Step 5: Solve for x
    x = 188,551,665.06/18,058.69
  6. Step 6: Final answer
    x = 10,441.05

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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.