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Finding the Fourth Proportional to 11,179.79, 16,753.95 and 8,829.47

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Solution

The fourth proportional to 11,179.79, 16,753.95 and 8,829.47 is: 13,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.79 : 16,753.95 = 8,829.47 : x
  2. Step 2: Convert to fraction form
    11,179.79/16,753.95 = 8,829.47/x
  3. Step 3: Cross multiply
    11,179.79x = 16,753.95 × 8,829.47
  4. Step 4: Simplify right side
    11,179.79x = 147,928,540.79
  5. Step 5: Solve for x
    x = 147,928,540.79/11,179.79
  6. Step 6: Final answer
    x = 13,231.78

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1.5x scale

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.