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Finding the Fourth Proportional to 3,437.57, 5,157 and 1,589.96

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Solution

The fourth proportional to 3,437.57, 5,157 and 1,589.96 is: 2,385.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.57 : 5,157 = 1,589.96 : x
  2. Step 2: Convert to fraction form
    3,437.57/5,157 = 1,589.96/x
  3. Step 3: Cross multiply
    3,437.57x = 5,157 × 1,589.96
  4. Step 4: Simplify right side
    3,437.57x = 8,199,436.61
  5. Step 5: Solve for x
    x = 8,199,436.61/3,437.57
  6. Step 6: Final answer
    x = 2,385.24

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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.