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Finding the Fourth Proportional to 3,385.50, 5,080.38 and 1,437.72

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Solution

The fourth proportional to 3,385.50, 5,080.38 and 1,437.72 is: 2,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.50 : 5,080.38 = 1,437.72 : x
  2. Step 2: Convert to fraction form
    3,385.50/5,080.38 = 1,437.72/x
  3. Step 3: Cross multiply
    3,385.50x = 5,080.38 × 1,437.72
  4. Step 4: Simplify right side
    3,385.50x = 7,304,163.93
  5. Step 5: Solve for x
    x = 7,304,163.93/3,385.50
  6. Step 6: Final answer
    x = 2,157.48

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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.