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Finding the Fourth Proportional to 71,996.22, 99,287.79 and 47,754.54

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Solution

The fourth proportional to 71,996.22, 99,287.79 and 47,754.54 is: 65,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,996.22 : 99,287.79 = 47,754.54 : x
  2. Step 2: Convert to fraction form
    71,996.22/99,287.79 = 47,754.54/x
  3. Step 3: Cross multiply
    71,996.22x = 99,287.79 × 47,754.54
  4. Step 4: Simplify right side
    71,996.22x = 4,741,442,739.07
  5. Step 5: Solve for x
    x = 4,741,442,739.07/71,996.22
  6. Step 6: Final answer
    x = 65,856.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.