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Finding the Fourth Proportional to 75,331.87, 112,994.56 and 22,739.78

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Solution

The fourth proportional to 75,331.87, 112,994.56 and 22,739.78 is: 34,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,331.87 : 112,994.56 = 22,739.78 : x
  2. Step 2: Convert to fraction form
    75,331.87/112,994.56 = 22,739.78/x
  3. Step 3: Cross multiply
    75,331.87x = 112,994.56 × 22,739.78
  4. Step 4: Simplify right side
    75,331.87x = 2,569,471,435.60
  5. Step 5: Solve for x
    x = 2,569,471,435.60/75,331.87
  6. Step 6: Final answer
    x = 34,108.69

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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.