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Finding the Fourth Proportional to 3,379.66, 5,063.40 and 3,176.34

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Solution

The fourth proportional to 3,379.66, 5,063.40 and 3,176.34 is: 4,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.66 : 5,063.40 = 3,176.34 : x
  2. Step 2: Convert to fraction form
    3,379.66/5,063.40 = 3,176.34/x
  3. Step 3: Cross multiply
    3,379.66x = 5,063.40 × 3,176.34
  4. Step 4: Simplify right side
    3,379.66x = 16,083,079.96
  5. Step 5: Solve for x
    x = 16,083,079.96/3,379.66
  6. Step 6: Final answer
    x = 4,758.79

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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.