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Finding the Fourth Proportional to 34,751.44, 47,949.56 and 20,608.88

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Solution

The fourth proportional to 34,751.44, 47,949.56 and 20,608.88 is: 28,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,751.44 : 47,949.56 = 20,608.88 : x
  2. Step 2: Convert to fraction form
    34,751.44/47,949.56 = 20,608.88/x
  3. Step 3: Cross multiply
    34,751.44x = 47,949.56 × 20,608.88
  4. Step 4: Simplify right side
    34,751.44x = 988,186,728.09
  5. Step 5: Solve for x
    x = 988,186,728.09/34,751.44
  6. Step 6: Final answer
    x = 28,435.85

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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.