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Finding the Fourth Proportional to 74,795.67, 112,198.41 and 28,049.76

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Solution

The fourth proportional to 74,795.67, 112,198.41 and 28,049.76 is: 42,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,795.67 : 112,198.41 = 28,049.76 : x
  2. Step 2: Convert to fraction form
    74,795.67/112,198.41 = 28,049.76/x
  3. Step 3: Cross multiply
    74,795.67x = 112,198.41 × 28,049.76
  4. Step 4: Simplify right side
    74,795.67x = 3,147,138,472.88
  5. Step 5: Solve for x
    x = 3,147,138,472.88/74,795.67
  6. Step 6: Final answer
    x = 42,076.48

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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.