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Finding the Fourth Proportional to 7,310.80, 10,957.11 and 3,357.87

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Solution

The fourth proportional to 7,310.80, 10,957.11 and 3,357.87 is: 5,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.80 : 10,957.11 = 3,357.87 : x
  2. Step 2: Convert to fraction form
    7,310.80/10,957.11 = 3,357.87/x
  3. Step 3: Cross multiply
    7,310.80x = 10,957.11 × 3,357.87
  4. Step 4: Simplify right side
    7,310.80x = 36,792,525.61
  5. Step 5: Solve for x
    x = 36,792,525.61/7,310.80
  6. Step 6: Final answer
    x = 5,032.63

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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.