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Finding the Fourth Proportional to 72,043.56, 107,920.37 and 35,910.97

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Solution

The fourth proportional to 72,043.56, 107,920.37 and 35,910.97 is: 53,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,043.56 : 107,920.37 = 35,910.97 : x
  2. Step 2: Convert to fraction form
    72,043.56/107,920.37 = 35,910.97/x
  3. Step 3: Cross multiply
    72,043.56x = 107,920.37 × 35,910.97
  4. Step 4: Simplify right side
    72,043.56x = 3,875,524,989.44
  5. Step 5: Solve for x
    x = 3,875,524,989.44/72,043.56
  6. Step 6: Final answer
    x = 53,794.19

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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.