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Finding the Fourth Proportional to 33,558.40, 50,337.60 and 13,830.40

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Solution

The fourth proportional to 33,558.40, 50,337.60 and 13,830.40 is: 20,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,558.40 : 50,337.60 = 13,830.40 : x
  2. Step 2: Convert to fraction form
    33,558.40/50,337.60 = 13,830.40/x
  3. Step 3: Cross multiply
    33,558.40x = 50,337.60 × 13,830.40
  4. Step 4: Simplify right side
    33,558.40x = 696,189,143.04
  5. Step 5: Solve for x
    x = 696,189,143.04/33,558.40
  6. Step 6: Final answer
    x = 20,745.60

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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.