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Finding the Fourth Proportional to 57,079.50, 78,789.14 and 33,226.22

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Solution

The fourth proportional to 57,079.50, 78,789.14 and 33,226.22 is: 45,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,079.50 : 78,789.14 = 33,226.22 : x
  2. Step 2: Convert to fraction form
    57,079.50/78,789.14 = 33,226.22/x
  3. Step 3: Cross multiply
    57,079.50x = 78,789.14 × 33,226.22
  4. Step 4: Simplify right side
    57,079.50x = 2,617,865,299.25
  5. Step 5: Solve for x
    x = 2,617,865,299.25/57,079.50
  6. Step 6: Final answer
    x = 45,863.49

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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.