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Finding the Fourth Proportional to 3,589.38, 5,384.57 and 1,509.48

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Solution

The fourth proportional to 3,589.38, 5,384.57 and 1,509.48 is: 2,264.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.38 : 5,384.57 = 1,509.48 : x
  2. Step 2: Convert to fraction form
    3,589.38/5,384.57 = 1,509.48/x
  3. Step 3: Cross multiply
    3,589.38x = 5,384.57 × 1,509.48
  4. Step 4: Simplify right side
    3,589.38x = 8,127,893.18
  5. Step 5: Solve for x
    x = 8,127,893.18/3,589.38
  6. Step 6: Final answer
    x = 2,264.43

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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.