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Finding the Fourth Proportional to 3,470.48, 5,205.58 and 873.44

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Solution

The fourth proportional to 3,470.48, 5,205.58 and 873.44 is: 1,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.48 : 5,205.58 = 873.44 : x
  2. Step 2: Convert to fraction form
    3,470.48/5,205.58 = 873.44/x
  3. Step 3: Cross multiply
    3,470.48x = 5,205.58 × 873.44
  4. Step 4: Simplify right side
    3,470.48x = 4,546,761.80
  5. Step 5: Solve for x
    x = 4,546,761.80/3,470.48
  6. Step 6: Final answer
    x = 1,310.12

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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.