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Finding the Fourth Proportional to 53,903.70, 80,855.55 and 34,269.30

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Solution

The fourth proportional to 53,903.70, 80,855.55 and 34,269.30 is: 51,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,903.70 : 80,855.55 = 34,269.30 : x
  2. Step 2: Convert to fraction form
    53,903.70/80,855.55 = 34,269.30/x
  3. Step 3: Cross multiply
    53,903.70x = 80,855.55 × 34,269.30
  4. Step 4: Simplify right side
    53,903.70x = 2,770,863,099.62
  5. Step 5: Solve for x
    x = 2,770,863,099.62/53,903.70
  6. Step 6: Final answer
    x = 51,403.95

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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.