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Finding the Fourth Proportional to 55,745.58, 76,909.04 and 33,067.20

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Solution

The fourth proportional to 55,745.58, 76,909.04 and 33,067.20 is: 45,620.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,745.58 : 76,909.04 = 33,067.20 : x
  2. Step 2: Convert to fraction form
    55,745.58/76,909.04 = 33,067.20/x
  3. Step 3: Cross multiply
    55,745.58x = 76,909.04 × 33,067.20
  4. Step 4: Simplify right side
    55,745.58x = 2,543,166,607.49
  5. Step 5: Solve for x
    x = 2,543,166,607.49/55,745.58
  6. Step 6: Final answer
    x = 45,620.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.