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Finding the Fourth Proportional to 63,872.76, 95,801.85 and 17,121.99

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Solution

The fourth proportional to 63,872.76, 95,801.85 and 17,121.99 is: 25,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,872.76 : 95,801.85 = 17,121.99 : x
  2. Step 2: Convert to fraction form
    63,872.76/95,801.85 = 17,121.99/x
  3. Step 3: Cross multiply
    63,872.76x = 95,801.85 × 17,121.99
  4. Step 4: Simplify right side
    63,872.76x = 1,640,318,317.68
  5. Step 5: Solve for x
    x = 1,640,318,317.68/63,872.76
  6. Step 6: Final answer
    x = 25,681.03

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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.