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Finding the Fourth Proportional to 4,723.72, 7,086.94 and 3,854.44

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Solution

The fourth proportional to 4,723.72, 7,086.94 and 3,854.44 is: 5,782.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,723.72 : 7,086.94 = 3,854.44 : x
  2. Step 2: Convert to fraction form
    4,723.72/7,086.94 = 3,854.44/x
  3. Step 3: Cross multiply
    4,723.72x = 7,086.94 × 3,854.44
  4. Step 4: Simplify right side
    4,723.72x = 27,316,166.05
  5. Step 5: Solve for x
    x = 27,316,166.05/4,723.72
  6. Step 6: Final answer
    x = 5,782.77

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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.