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Finding the Fourth Proportional to 3,590.78, 5,375.03 and 1,943.24

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Solution

The fourth proportional to 3,590.78, 5,375.03 and 1,943.24 is: 2,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.78 : 5,375.03 = 1,943.24 : x
  2. Step 2: Convert to fraction form
    3,590.78/5,375.03 = 1,943.24/x
  3. Step 3: Cross multiply
    3,590.78x = 5,375.03 × 1,943.24
  4. Step 4: Simplify right side
    3,590.78x = 10,444,983.34
  5. Step 5: Solve for x
    x = 10,444,983.34/3,590.78
  6. Step 6: Final answer
    x = 2,908.83

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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.