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Finding the Fourth Proportional to 3,491.72, 5,234.80 and 1,735.48

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Solution

The fourth proportional to 3,491.72, 5,234.80 and 1,735.48 is: 2,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.72 : 5,234.80 = 1,735.48 : x
  2. Step 2: Convert to fraction form
    3,491.72/5,234.80 = 1,735.48/x
  3. Step 3: Cross multiply
    3,491.72x = 5,234.80 × 1,735.48
  4. Step 4: Simplify right side
    3,491.72x = 9,084,890.70
  5. Step 5: Solve for x
    x = 9,084,890.70/3,491.72
  6. Step 6: Final answer
    x = 2,601.84

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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.