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Finding the Fourth Proportional to 57,809.28, 79,786.96 and 33,617.74

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Solution

The fourth proportional to 57,809.28, 79,786.96 and 33,617.74 is: 46,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,809.28 : 79,786.96 = 33,617.74 : x
  2. Step 2: Convert to fraction form
    57,809.28/79,786.96 = 33,617.74/x
  3. Step 3: Cross multiply
    57,809.28x = 79,786.96 × 33,617.74
  4. Step 4: Simplify right side
    57,809.28x = 2,682,257,276.67
  5. Step 5: Solve for x
    x = 2,682,257,276.67/57,809.28
  6. Step 6: Final answer
    x = 46,398.39

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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.