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Finding the Fourth Proportional to 18,324.50, 25,287.82 and 9,941

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Solution

The fourth proportional to 18,324.50, 25,287.82 and 9,941 is: 13,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.50 : 25,287.82 = 9,941 : x
  2. Step 2: Convert to fraction form
    18,324.50/25,287.82 = 9,941/x
  3. Step 3: Cross multiply
    18,324.50x = 25,287.82 × 9,941
  4. Step 4: Simplify right side
    18,324.50x = 251,386,218.62
  5. Step 5: Solve for x
    x = 251,386,218.62/18,324.50
  6. Step 6: Final answer
    x = 13,718.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.