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Finding the Fourth Proportional to 5,259.68, 7,887.24 and 2,793.96

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Solution

The fourth proportional to 5,259.68, 7,887.24 and 2,793.96 is: 4,189.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.68 : 7,887.24 = 2,793.96 : x
  2. Step 2: Convert to fraction form
    5,259.68/7,887.24 = 2,793.96/x
  3. Step 3: Cross multiply
    5,259.68x = 7,887.24 × 2,793.96
  4. Step 4: Simplify right side
    5,259.68x = 22,036,633.07
  5. Step 5: Solve for x
    x = 22,036,633.07/5,259.68
  6. Step 6: Final answer
    x = 4,189.73

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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.