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Finding the Fourth Proportional to 53,647.20, 80,470.80 and 33,672.60

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Solution

The fourth proportional to 53,647.20, 80,470.80 and 33,672.60 is: 50,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,647.20 : 80,470.80 = 33,672.60 : x
  2. Step 2: Convert to fraction form
    53,647.20/80,470.80 = 33,672.60/x
  3. Step 3: Cross multiply
    53,647.20x = 80,470.80 × 33,672.60
  4. Step 4: Simplify right side
    53,647.20x = 2,709,661,060.08
  5. Step 5: Solve for x
    x = 2,709,661,060.08/53,647.20
  6. Step 6: Final answer
    x = 50,508.90

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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.