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Finding the Fourth Proportional to 5,737.70, 7,917.38 and 3,219.29

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Solution

The fourth proportional to 5,737.70, 7,917.38 and 3,219.29 is: 4,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,737.70 : 7,917.38 = 3,219.29 : x
  2. Step 2: Convert to fraction form
    5,737.70/7,917.38 = 3,219.29/x
  3. Step 3: Cross multiply
    5,737.70x = 7,917.38 × 3,219.29
  4. Step 4: Simplify right side
    5,737.70x = 25,488,286.58
  5. Step 5: Solve for x
    x = 25,488,286.58/5,737.70
  6. Step 6: Final answer
    x = 4,442.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.