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Finding the Fourth Proportional to 11,793.92, 16,276.20 and 6,489.44

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Solution

The fourth proportional to 11,793.92, 16,276.20 and 6,489.44 is: 8,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.92 : 16,276.20 = 6,489.44 : x
  2. Step 2: Convert to fraction form
    11,793.92/16,276.20 = 6,489.44/x
  3. Step 3: Cross multiply
    11,793.92x = 16,276.20 × 6,489.44
  4. Step 4: Simplify right side
    11,793.92x = 105,623,423.33
  5. Step 5: Solve for x
    x = 105,623,423.33/11,793.92
  6. Step 6: Final answer
    x = 8,955.75

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1.5x scale

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.