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Finding the Fourth Proportional to 49,469.76, 74,070.72 and 36,221.76

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Solution

The fourth proportional to 49,469.76, 74,070.72 and 36,221.76 is: 54,234.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,469.76 : 74,070.72 = 36,221.76 : x
  2. Step 2: Convert to fraction form
    49,469.76/74,070.72 = 36,221.76/x
  3. Step 3: Cross multiply
    49,469.76x = 74,070.72 × 36,221.76
  4. Step 4: Simplify right side
    49,469.76x = 2,682,971,842.87
  5. Step 5: Solve for x
    x = 2,682,971,842.87/49,469.76
  6. Step 6: Final answer
    x = 54,234.58

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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.