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Finding the Fourth Proportional to 57,792.87, 79,750.31 and 32,640.75

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Solution

The fourth proportional to 57,792.87, 79,750.31 and 32,640.75 is: 45,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,792.87 : 79,750.31 = 32,640.75 : x
  2. Step 2: Convert to fraction form
    57,792.87/79,750.31 = 32,640.75/x
  3. Step 3: Cross multiply
    57,792.87x = 79,750.31 × 32,640.75
  4. Step 4: Simplify right side
    57,792.87x = 2,603,109,767.93
  5. Step 5: Solve for x
    x = 2,603,109,767.93/57,792.87
  6. Step 6: Final answer
    x = 45,042.06

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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.