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Finding the Fourth Proportional to 53,963.60, 80,945.40 and 35,301.20

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Solution

The fourth proportional to 53,963.60, 80,945.40 and 35,301.20 is: 52,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,963.60 : 80,945.40 = 35,301.20 : x
  2. Step 2: Convert to fraction form
    53,963.60/80,945.40 = 35,301.20/x
  3. Step 3: Cross multiply
    53,963.60x = 80,945.40 × 35,301.20
  4. Step 4: Simplify right side
    53,963.60x = 2,857,469,754.48
  5. Step 5: Solve for x
    x = 2,857,469,754.48/53,963.60
  6. Step 6: Final answer
    x = 52,951.80

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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.