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Finding the Fourth Proportional to 57,708.96, 79,640.64 and 33,832.32

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Solution

The fourth proportional to 57,708.96, 79,640.64 and 33,832.32 is: 46,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,708.96 : 79,640.64 = 33,832.32 : x
  2. Step 2: Convert to fraction form
    57,708.96/79,640.64 = 33,832.32/x
  3. Step 3: Cross multiply
    57,708.96x = 79,640.64 × 33,832.32
  4. Step 4: Simplify right side
    57,708.96x = 2,694,427,617.48
  5. Step 5: Solve for x
    x = 2,694,427,617.48/57,708.96
  6. Step 6: Final answer
    x = 46,689.94

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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.