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Finding the Fourth Proportional to 8,581.72, 11,842.64 and 4,804.87

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Solution

The fourth proportional to 8,581.72, 11,842.64 and 4,804.87 is: 6,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.72 : 11,842.64 = 4,804.87 : x
  2. Step 2: Convert to fraction form
    8,581.72/11,842.64 = 4,804.87/x
  3. Step 3: Cross multiply
    8,581.72x = 11,842.64 × 4,804.87
  4. Step 4: Simplify right side
    8,581.72x = 56,902,286.44
  5. Step 5: Solve for x
    x = 56,902,286.44/8,581.72
  6. Step 6: Final answer
    x = 6,630.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.