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Finding the Fourth Proportional to 53,910.60, 80,938.80 and 34,227.60

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Solution

The fourth proportional to 53,910.60, 80,938.80 and 34,227.60 is: 51,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.60 : 80,938.80 = 34,227.60 : x
  2. Step 2: Convert to fraction form
    53,910.60/80,938.80 = 34,227.60/x
  3. Step 3: Cross multiply
    53,910.60x = 80,938.80 × 34,227.60
  4. Step 4: Simplify right side
    53,910.60x = 2,770,340,870.88
  5. Step 5: Solve for x
    x = 2,770,340,870.88/53,910.60
  6. Step 6: Final answer
    x = 51,387.68

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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.