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Finding the Fourth Proportional to 14,964.56, 20,651.04 and 8,680.52

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Solution

The fourth proportional to 14,964.56, 20,651.04 and 8,680.52 is: 11,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,964.56 : 20,651.04 = 8,680.52 : x
  2. Step 2: Convert to fraction form
    14,964.56/20,651.04 = 8,680.52/x
  3. Step 3: Cross multiply
    14,964.56x = 20,651.04 × 8,680.52
  4. Step 4: Simplify right side
    14,964.56x = 179,261,765.74
  5. Step 5: Solve for x
    x = 179,261,765.74/14,964.56
  6. Step 6: Final answer
    x = 11,979.09

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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.