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Finding the Fourth Proportional to 57,798.78, 79,757.67 and 33,906.30

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Solution

The fourth proportional to 57,798.78, 79,757.67 and 33,906.30 is: 46,787.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.78 : 79,757.67 = 33,906.30 : x
  2. Step 2: Convert to fraction form
    57,798.78/79,757.67 = 33,906.30/x
  3. Step 3: Cross multiply
    57,798.78x = 79,757.67 × 33,906.30
  4. Step 4: Simplify right side
    57,798.78x = 2,704,287,486.32
  5. Step 5: Solve for x
    x = 2,704,287,486.32/57,798.78
  6. Step 6: Final answer
    x = 46,787.97

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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.