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Finding the Fourth Proportional to 3,359.61, 5,039.42 and 1,169.91

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Solution

The fourth proportional to 3,359.61, 5,039.42 and 1,169.91 is: 1,754.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.61 : 5,039.42 = 1,169.91 : x
  2. Step 2: Convert to fraction form
    3,359.61/5,039.42 = 1,169.91/x
  3. Step 3: Cross multiply
    3,359.61x = 5,039.42 × 1,169.91
  4. Step 4: Simplify right side
    3,359.61x = 5,895,662.00
  5. Step 5: Solve for x
    x = 5,895,662.00/3,359.61
  6. Step 6: Final answer
    x = 1,754.87

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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.