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Finding the Fourth Proportional to 72,797.60, 109,201.13 and 22,879.80

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Solution

The fourth proportional to 72,797.60, 109,201.13 and 22,879.80 is: 34,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,797.60 : 109,201.13 = 22,879.80 : x
  2. Step 2: Convert to fraction form
    72,797.60/109,201.13 = 22,879.80/x
  3. Step 3: Cross multiply
    72,797.60x = 109,201.13 × 22,879.80
  4. Step 4: Simplify right side
    72,797.60x = 2,498,499,985.57
  5. Step 5: Solve for x
    x = 2,498,499,985.57/72,797.60
  6. Step 6: Final answer
    x = 34,321.19

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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.