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Finding the Fourth Proportional to 72,901.44, 109,383.90 and 25,550.58

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Solution

The fourth proportional to 72,901.44, 109,383.90 and 25,550.58 is: 38,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,901.44 : 109,383.90 = 25,550.58 : x
  2. Step 2: Convert to fraction form
    72,901.44/109,383.90 = 25,550.58/x
  3. Step 3: Cross multiply
    72,901.44x = 109,383.90 × 25,550.58
  4. Step 4: Simplify right side
    72,901.44x = 2,794,822,087.66
  5. Step 5: Solve for x
    x = 2,794,822,087.66/72,901.44
  6. Step 6: Final answer
    x = 38,336.99

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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.