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Finding the Fourth Proportional to 75,777.70, 113,667.12 and 33,646.44

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Solution

The fourth proportional to 75,777.70, 113,667.12 and 33,646.44 is: 50,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,777.70 : 113,667.12 = 33,646.44 : x
  2. Step 2: Convert to fraction form
    75,777.70/113,667.12 = 33,646.44/x
  3. Step 3: Cross multiply
    75,777.70x = 113,667.12 × 33,646.44
  4. Step 4: Simplify right side
    75,777.70x = 3,824,493,933.05
  5. Step 5: Solve for x
    x = 3,824,493,933.05/75,777.70
  6. Step 6: Final answer
    x = 50,469.91

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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.