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Finding the Fourth Proportional to 5,334.87, 7,988.31 and 3,766.41

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Solution

The fourth proportional to 5,334.87, 7,988.31 and 3,766.41 is: 5,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.87 : 7,988.31 = 3,766.41 : x
  2. Step 2: Convert to fraction form
    5,334.87/7,988.31 = 3,766.41/x
  3. Step 3: Cross multiply
    5,334.87x = 7,988.31 × 3,766.41
  4. Step 4: Simplify right side
    5,334.87x = 30,087,250.67
  5. Step 5: Solve for x
    x = 30,087,250.67/5,334.87
  6. Step 6: Final answer
    x = 5,639.73

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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.