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Finding the Fourth Proportional to 6,731.70, 10,096.20 and 3,221.70

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Solution

The fourth proportional to 6,731.70, 10,096.20 and 3,221.70 is: 4,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.70 : 10,096.20 = 3,221.70 : x
  2. Step 2: Convert to fraction form
    6,731.70/10,096.20 = 3,221.70/x
  3. Step 3: Cross multiply
    6,731.70x = 10,096.20 × 3,221.70
  4. Step 4: Simplify right side
    6,731.70x = 32,526,927.54
  5. Step 5: Solve for x
    x = 32,526,927.54/6,731.70
  6. Step 6: Final answer
    x = 4,831.90

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1.5x scale

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.