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Finding the Fourth Proportional to 10,906.60, 16,367.04 and 5,979.68

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Solution

The fourth proportional to 10,906.60, 16,367.04 and 5,979.68 is: 8,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,906.60 : 16,367.04 = 5,979.68 : x
  2. Step 2: Convert to fraction form
    10,906.60/16,367.04 = 5,979.68/x
  3. Step 3: Cross multiply
    10,906.60x = 16,367.04 × 5,979.68
  4. Step 4: Simplify right side
    10,906.60x = 97,869,661.75
  5. Step 5: Solve for x
    x = 97,869,661.75/10,906.60
  6. Step 6: Final answer
    x = 8,973.43

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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.