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Finding the Fourth Proportional to 3,771.50, 5,654.82 and 1,305.06

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Solution

The fourth proportional to 3,771.50, 5,654.82 and 1,305.06 is: 1,956.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.50 : 5,654.82 = 1,305.06 : x
  2. Step 2: Convert to fraction form
    3,771.50/5,654.82 = 1,305.06/x
  3. Step 3: Cross multiply
    3,771.50x = 5,654.82 × 1,305.06
  4. Step 4: Simplify right side
    3,771.50x = 7,379,879.39
  5. Step 5: Solve for x
    x = 7,379,879.39/3,771.50
  6. Step 6: Final answer
    x = 1,956.75

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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.