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Finding the Fourth Proportional to 8,493.39, 11,720.34 and 4,716.54

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Solution

The fourth proportional to 8,493.39, 11,720.34 and 4,716.54 is: 6,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.39 : 11,720.34 = 4,716.54 : x
  2. Step 2: Convert to fraction form
    8,493.39/11,720.34 = 4,716.54/x
  3. Step 3: Cross multiply
    8,493.39x = 11,720.34 × 4,716.54
  4. Step 4: Simplify right side
    8,493.39x = 55,279,452.42
  5. Step 5: Solve for x
    x = 55,279,452.42/8,493.39
  6. Step 6: Final answer
    x = 6,508.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.