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Finding the Fourth Proportional to 49,246.80, 73,879.80 and 19,659.60

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Solution

The fourth proportional to 49,246.80, 73,879.80 and 19,659.60 is: 29,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,246.80 : 73,879.80 = 19,659.60 : x
  2. Step 2: Convert to fraction form
    49,246.80/73,879.80 = 19,659.60/x
  3. Step 3: Cross multiply
    49,246.80x = 73,879.80 × 19,659.60
  4. Step 4: Simplify right side
    49,246.80x = 1,452,447,316.08
  5. Step 5: Solve for x
    x = 1,452,447,316.08/49,246.80
  6. Step 6: Final answer
    x = 29,493.23

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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.