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Finding the Fourth Proportional to 25,963.43, 38,939.67 and 9,324.41

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Solution

The fourth proportional to 25,963.43, 38,939.67 and 9,324.41 is: 13,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,963.43 : 38,939.67 = 9,324.41 : x
  2. Step 2: Convert to fraction form
    25,963.43/38,939.67 = 9,324.41/x
  3. Step 3: Cross multiply
    25,963.43x = 38,939.67 × 9,324.41
  4. Step 4: Simplify right side
    25,963.43x = 363,089,253.65
  5. Step 5: Solve for x
    x = 363,089,253.65/25,963.43
  6. Step 6: Final answer
    x = 13,984.64

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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.