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Finding the Fourth Proportional to 18,394.16, 27,591.23 and 4,543.16

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Solution

The fourth proportional to 18,394.16, 27,591.23 and 4,543.16 is: 6,814.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.16 : 27,591.23 = 4,543.16 : x
  2. Step 2: Convert to fraction form
    18,394.16/27,591.23 = 4,543.16/x
  3. Step 3: Cross multiply
    18,394.16x = 27,591.23 × 4,543.16
  4. Step 4: Simplify right side
    18,394.16x = 125,351,245.89
  5. Step 5: Solve for x
    x = 125,351,245.89/18,394.16
  6. Step 6: Final answer
    x = 6,814.73

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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.