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Finding the Fourth Proportional to 3,175.82, 4,764.00 and 835.81

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Solution

The fourth proportional to 3,175.82, 4,764.00 and 835.81 is: 1,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.82 : 4,764.00 = 835.81 : x
  2. Step 2: Convert to fraction form
    3,175.82/4,764.00 = 835.81/x
  3. Step 3: Cross multiply
    3,175.82x = 4,764.00 × 835.81
  4. Step 4: Simplify right side
    3,175.82x = 3,981,782.19
  5. Step 5: Solve for x
    x = 3,981,782.19/3,175.82
  6. Step 6: Final answer
    x = 1,253.78

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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.