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Finding the Fourth Proportional to 71,996.80, 107,962.80 and 27,608.80

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Solution

The fourth proportional to 71,996.80, 107,962.80 and 27,608.80 is: 41,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,996.80 : 107,962.80 = 27,608.80 : x
  2. Step 2: Convert to fraction form
    71,996.80/107,962.80 = 27,608.80/x
  3. Step 3: Cross multiply
    71,996.80x = 107,962.80 × 27,608.80
  4. Step 4: Simplify right side
    71,996.80x = 2,980,723,352.64
  5. Step 5: Solve for x
    x = 2,980,723,352.64/71,996.80
  6. Step 6: Final answer
    x = 41,400.78

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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.