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Finding the Fourth Proportional to 57,069.44, 85,640.76 and 30,792.44

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Solution

The fourth proportional to 57,069.44, 85,640.76 and 30,792.44 is: 46,208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069.44 : 85,640.76 = 30,792.44 : x
  2. Step 2: Convert to fraction form
    57,069.44/85,640.76 = 30,792.44/x
  3. Step 3: Cross multiply
    57,069.44x = 85,640.76 × 30,792.44
  4. Step 4: Simplify right side
    57,069.44x = 2,637,087,963.85
  5. Step 5: Solve for x
    x = 2,637,087,963.85/57,069.44
  6. Step 6: Final answer
    x = 46,208.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.