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Finding the Fourth Proportional to 33,755.20, 50,632.80 and 20,622.40

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Solution

The fourth proportional to 33,755.20, 50,632.80 and 20,622.40 is: 30,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,755.20 : 50,632.80 = 20,622.40 : x
  2. Step 2: Convert to fraction form
    33,755.20/50,632.80 = 20,622.40/x
  3. Step 3: Cross multiply
    33,755.20x = 50,632.80 × 20,622.40
  4. Step 4: Simplify right side
    33,755.20x = 1,044,169,854.72
  5. Step 5: Solve for x
    x = 1,044,169,854.72/33,755.20
  6. Step 6: Final answer
    x = 30,933.60

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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.