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Finding the Fourth Proportional to 39,205.60, 58,743.60 and 33,632.80

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Solution

The fourth proportional to 39,205.60, 58,743.60 and 33,632.80 is: 50,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205.60 : 58,743.60 = 33,632.80 : x
  2. Step 2: Convert to fraction form
    39,205.60/58,743.60 = 33,632.80/x
  3. Step 3: Cross multiply
    39,205.60x = 58,743.60 × 33,632.80
  4. Step 4: Simplify right side
    39,205.60x = 1,975,711,750.08
  5. Step 5: Solve for x
    x = 1,975,711,750.08/39,205.60
  6. Step 6: Final answer
    x = 50,393.61

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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.