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Finding the Fourth Proportional to 53,951.20, 80,840.40 and 34,194.40

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Solution

The fourth proportional to 53,951.20, 80,840.40 and 34,194.40 is: 51,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,951.20 : 80,840.40 = 34,194.40 : x
  2. Step 2: Convert to fraction form
    53,951.20/80,840.40 = 34,194.40/x
  3. Step 3: Cross multiply
    53,951.20x = 80,840.40 × 34,194.40
  4. Step 4: Simplify right side
    53,951.20x = 2,764,288,973.76
  5. Step 5: Solve for x
    x = 2,764,288,973.76/53,951.20
  6. Step 6: Final answer
    x = 51,236.84

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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.