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Finding the Fourth Proportional to 9,717.92, 14,579.03 and 2,791.88

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Solution

The fourth proportional to 9,717.92, 14,579.03 and 2,791.88 is: 4,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,717.92 : 14,579.03 = 2,791.88 : x
  2. Step 2: Convert to fraction form
    9,717.92/14,579.03 = 2,791.88/x
  3. Step 3: Cross multiply
    9,717.92x = 14,579.03 × 2,791.88
  4. Step 4: Simplify right side
    9,717.92x = 40,702,836.36
  5. Step 5: Solve for x
    x = 40,702,836.36/9,717.92
  6. Step 6: Final answer
    x = 4,188.43

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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.