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Finding the Fourth Proportional to 18,310.10, 27,462.71 and 5,163.53

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Solution

The fourth proportional to 18,310.10, 27,462.71 and 5,163.53 is: 7,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.10 : 27,462.71 = 5,163.53 : x
  2. Step 2: Convert to fraction form
    18,310.10/27,462.71 = 5,163.53/x
  3. Step 3: Cross multiply
    18,310.10x = 27,462.71 × 5,163.53
  4. Step 4: Simplify right side
    18,310.10x = 141,804,402.56
  5. Step 5: Solve for x
    x = 141,804,402.56/18,310.10
  6. Step 6: Final answer
    x = 7,744.60

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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.