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Finding the Fourth Proportional to 34,757.87, 47,968.83 and 19,653.21

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Solution

The fourth proportional to 34,757.87, 47,968.83 and 19,653.21 is: 27,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,757.87 : 47,968.83 = 19,653.21 : x
  2. Step 2: Convert to fraction form
    34,757.87/47,968.83 = 19,653.21/x
  3. Step 3: Cross multiply
    34,757.87x = 47,968.83 × 19,653.21
  4. Step 4: Simplify right side
    34,757.87x = 942,741,489.44
  5. Step 5: Solve for x
    x = 942,741,489.44/34,757.87
  6. Step 6: Final answer
    x = 27,123.11

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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.