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Finding the Fourth Proportional to 81,694.48, 122,550.24 and 22,530.16

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Solution

The fourth proportional to 81,694.48, 122,550.24 and 22,530.16 is: 33,797.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,694.48 : 122,550.24 = 22,530.16 : x
  2. Step 2: Convert to fraction form
    81,694.48/122,550.24 = 22,530.16/x
  3. Step 3: Cross multiply
    81,694.48x = 122,550.24 × 22,530.16
  4. Step 4: Simplify right side
    81,694.48x = 2,761,076,515.24
  5. Step 5: Solve for x
    x = 2,761,076,515.24/81,694.48
  6. Step 6: Final answer
    x = 33,797.59

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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.