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Finding the Fourth Proportional to 57,757.64, 79,705.92 and 33,884.84

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Solution

The fourth proportional to 57,757.64, 79,705.92 and 33,884.84 is: 46,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,757.64 : 79,705.92 = 33,884.84 : x
  2. Step 2: Convert to fraction form
    57,757.64/79,705.92 = 33,884.84/x
  3. Step 3: Cross multiply
    57,757.64x = 79,705.92 × 33,884.84
  4. Step 4: Simplify right side
    57,757.64x = 2,700,822,346.25
  5. Step 5: Solve for x
    x = 2,700,822,346.25/57,757.64
  6. Step 6: Final answer
    x = 46,761.30

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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.