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Finding the Fourth Proportional to 36,528.40, 54,850.20 and 20,976.40

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Solution

The fourth proportional to 36,528.40, 54,850.20 and 20,976.40 is: 31,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,528.40 : 54,850.20 = 20,976.40 : x
  2. Step 2: Convert to fraction form
    36,528.40/54,850.20 = 20,976.40/x
  3. Step 3: Cross multiply
    36,528.40x = 54,850.20 × 20,976.40
  4. Step 4: Simplify right side
    36,528.40x = 1,150,559,735.28
  5. Step 5: Solve for x
    x = 1,150,559,735.28/36,528.40
  6. Step 6: Final answer
    x = 31,497.68

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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.