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Finding the Fourth Proportional to 36,489.80, 54,734.70 and 32,115.80

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Solution

The fourth proportional to 36,489.80, 54,734.70 and 32,115.80 is: 48,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.80 : 54,734.70 = 32,115.80 : x
  2. Step 2: Convert to fraction form
    36,489.80/54,734.70 = 32,115.80/x
  3. Step 3: Cross multiply
    36,489.80x = 54,734.70 × 32,115.80
  4. Step 4: Simplify right side
    36,489.80x = 1,757,848,678.26
  5. Step 5: Solve for x
    x = 1,757,848,678.26/36,489.80
  6. Step 6: Final answer
    x = 48,173.70

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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.