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Finding the Fourth Proportional to 18,494.42, 27,750.72 and 11,472.62

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Solution

The fourth proportional to 18,494.42, 27,750.72 and 11,472.62 is: 17,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.42 : 27,750.72 = 11,472.62 : x
  2. Step 2: Convert to fraction form
    18,494.42/27,750.72 = 11,472.62/x
  3. Step 3: Cross multiply
    18,494.42x = 27,750.72 × 11,472.62
  4. Step 4: Simplify right side
    18,494.42x = 318,373,326.53
  5. Step 5: Solve for x
    x = 318,373,326.53/18,494.42
  6. Step 6: Final answer
    x = 17,214.57

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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.