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Finding the Fourth Proportional to 8,563.11, 12,851.95 and 3,372.63

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Solution

The fourth proportional to 8,563.11, 12,851.95 and 3,372.63 is: 5,061.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.11 : 12,851.95 = 3,372.63 : x
  2. Step 2: Convert to fraction form
    8,563.11/12,851.95 = 3,372.63/x
  3. Step 3: Cross multiply
    8,563.11x = 12,851.95 × 3,372.63
  4. Step 4: Simplify right side
    8,563.11x = 43,344,872.13
  5. Step 5: Solve for x
    x = 43,344,872.13/8,563.11
  6. Step 6: Final answer
    x = 5,061.81

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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.