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Finding the Fourth Proportional to 57,672.90, 79,573.54 and 33,786.73

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Solution

The fourth proportional to 57,672.90, 79,573.54 and 33,786.73 is: 46,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,672.90 : 79,573.54 = 33,786.73 : x
  2. Step 2: Convert to fraction form
    57,672.90/79,573.54 = 33,786.73/x
  3. Step 3: Cross multiply
    57,672.90x = 79,573.54 × 33,786.73
  4. Step 4: Simplify right side
    57,672.90x = 2,688,529,711.12
  5. Step 5: Solve for x
    x = 2,688,529,711.12/57,672.90
  6. Step 6: Final answer
    x = 46,616.86

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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.