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Finding the Fourth Proportional to 36,229.68, 54,338.64 and 9,928.32

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Solution

The fourth proportional to 36,229.68, 54,338.64 and 9,928.32 is: 14,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,229.68 : 54,338.64 = 9,928.32 : x
  2. Step 2: Convert to fraction form
    36,229.68/54,338.64 = 9,928.32/x
  3. Step 3: Cross multiply
    36,229.68x = 54,338.64 × 9,928.32
  4. Step 4: Simplify right side
    36,229.68x = 539,491,406.28
  5. Step 5: Solve for x
    x = 539,491,406.28/36,229.68
  6. Step 6: Final answer
    x = 14,890.87

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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.