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Finding the Fourth Proportional to 6,781.70, 10,174.17 and 4,837.70

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Solution

The fourth proportional to 6,781.70, 10,174.17 and 4,837.70 is: 7,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.70 : 10,174.17 = 4,837.70 : x
  2. Step 2: Convert to fraction form
    6,781.70/10,174.17 = 4,837.70/x
  3. Step 3: Cross multiply
    6,781.70x = 10,174.17 × 4,837.70
  4. Step 4: Simplify right side
    6,781.70x = 49,219,582.21
  5. Step 5: Solve for x
    x = 49,219,582.21/6,781.70
  6. Step 6: Final answer
    x = 7,257.71

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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.