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Finding the Fourth Proportional to 49,245.60, 73,846.80 and 19,653.60

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Solution

The fourth proportional to 49,245.60, 73,846.80 and 19,653.60 is: 29,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,245.60 : 73,846.80 = 19,653.60 : x
  2. Step 2: Convert to fraction form
    49,245.60/73,846.80 = 19,653.60/x
  3. Step 3: Cross multiply
    49,245.60x = 73,846.80 × 19,653.60
  4. Step 4: Simplify right side
    49,245.60x = 1,451,355,468.48
  5. Step 5: Solve for x
    x = 1,451,355,468.48/49,245.60
  6. Step 6: Final answer
    x = 29,471.78

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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.