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Finding the Fourth Proportional to 5,791.48, 8,687.22 and 1,408.94

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Solution

The fourth proportional to 5,791.48, 8,687.22 and 1,408.94 is: 2,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.48 : 8,687.22 = 1,408.94 : x
  2. Step 2: Convert to fraction form
    5,791.48/8,687.22 = 1,408.94/x
  3. Step 3: Cross multiply
    5,791.48x = 8,687.22 × 1,408.94
  4. Step 4: Simplify right side
    5,791.48x = 12,239,771.75
  5. Step 5: Solve for x
    x = 12,239,771.75/5,791.48
  6. Step 6: Final answer
    x = 2,113.41

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1.5x scale

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.