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Finding the Fourth Proportional to 4,793.96, 7,191.53 and 1,874.31

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Solution

The fourth proportional to 4,793.96, 7,191.53 and 1,874.31 is: 2,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,793.96 : 7,191.53 = 1,874.31 : x
  2. Step 2: Convert to fraction form
    4,793.96/7,191.53 = 1,874.31/x
  3. Step 3: Cross multiply
    4,793.96x = 7,191.53 × 1,874.31
  4. Step 4: Simplify right side
    4,793.96x = 13,479,147.22
  5. Step 5: Solve for x
    x = 13,479,147.22/4,793.96
  6. Step 6: Final answer
    x = 2,811.70

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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.