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Finding the Fourth Proportional to 49,138.56, 73,684.80 and 29,168.64

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Solution

The fourth proportional to 49,138.56, 73,684.80 and 29,168.64 is: 43,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,138.56 : 73,684.80 = 29,168.64 : x
  2. Step 2: Convert to fraction form
    49,138.56/73,684.80 = 29,168.64/x
  3. Step 3: Cross multiply
    49,138.56x = 73,684.80 × 29,168.64
  4. Step 4: Simplify right side
    49,138.56x = 2,149,285,404.67
  5. Step 5: Solve for x
    x = 2,149,285,404.67/49,138.56
  6. Step 6: Final answer
    x = 43,739.28

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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.