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Finding the Fourth Proportional to 86,542.02, 129,813.84 and 33,956.82

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Solution

The fourth proportional to 86,542.02, 129,813.84 and 33,956.82 is: 50,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,542.02 : 129,813.84 = 33,956.82 : x
  2. Step 2: Convert to fraction form
    86,542.02/129,813.84 = 33,956.82/x
  3. Step 3: Cross multiply
    86,542.02x = 129,813.84 × 33,956.82
  4. Step 4: Simplify right side
    86,542.02x = 4,408,065,198.39
  5. Step 5: Solve for x
    x = 4,408,065,198.39/86,542.02
  6. Step 6: Final answer
    x = 50,935.55

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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.