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Finding the Fourth Proportional to 39,052.80, 58,579.20 and 33,415.20

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Solution

The fourth proportional to 39,052.80, 58,579.20 and 33,415.20 is: 50,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,052.80 : 58,579.20 = 33,415.20 : x
  2. Step 2: Convert to fraction form
    39,052.80/58,579.20 = 33,415.20/x
  3. Step 3: Cross multiply
    39,052.80x = 58,579.20 × 33,415.20
  4. Step 4: Simplify right side
    39,052.80x = 1,957,435,683.84
  5. Step 5: Solve for x
    x = 1,957,435,683.84/39,052.80
  6. Step 6: Final answer
    x = 50,122.80

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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.