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Finding the Fourth Proportional to 3,798.45, 5,694.21 and 1,331.93

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Solution

The fourth proportional to 3,798.45, 5,694.21 and 1,331.93 is: 1,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.45 : 5,694.21 = 1,331.93 : x
  2. Step 2: Convert to fraction form
    3,798.45/5,694.21 = 1,331.93/x
  3. Step 3: Cross multiply
    3,798.45x = 5,694.21 × 1,331.93
  4. Step 4: Simplify right side
    3,798.45x = 7,584,303.36
  5. Step 5: Solve for x
    x = 7,584,303.36/3,798.45
  6. Step 6: Final answer
    x = 1,996.68

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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.