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Finding the Fourth Proportional to 6,910.40, 9,536.40 and 3,766.52

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Solution

The fourth proportional to 6,910.40, 9,536.40 and 3,766.52 is: 5,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.40 : 9,536.40 = 3,766.52 : x
  2. Step 2: Convert to fraction form
    6,910.40/9,536.40 = 3,766.52/x
  3. Step 3: Cross multiply
    6,910.40x = 9,536.40 × 3,766.52
  4. Step 4: Simplify right side
    6,910.40x = 35,919,041.33
  5. Step 5: Solve for x
    x = 35,919,041.33/6,910.40
  6. Step 6: Final answer
    x = 5,197.82

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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.