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Finding the Fourth Proportional to 6,255.72, 8,629.17 and 3,897.41

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Solution

The fourth proportional to 6,255.72, 8,629.17 and 3,897.41 is: 5,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,255.72 : 8,629.17 = 3,897.41 : x
  2. Step 2: Convert to fraction form
    6,255.72/8,629.17 = 3,897.41/x
  3. Step 3: Cross multiply
    6,255.72x = 8,629.17 × 3,897.41
  4. Step 4: Simplify right side
    6,255.72x = 33,631,370.30
  5. Step 5: Solve for x
    x = 33,631,370.30/6,255.72
  6. Step 6: Final answer
    x = 5,376.10

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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.