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Finding the Fourth Proportional to 57,092.24, 78,761 and 36,955.60

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Solution

The fourth proportional to 57,092.24, 78,761 and 36,955.60 is: 50,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,092.24 : 78,761 = 36,955.60 : x
  2. Step 2: Convert to fraction form
    57,092.24/78,761 = 36,955.60/x
  3. Step 3: Cross multiply
    57,092.24x = 78,761 × 36,955.60
  4. Step 4: Simplify right side
    57,092.24x = 2,910,660,011.60
  5. Step 5: Solve for x
    x = 2,910,660,011.60/57,092.24
  6. Step 6: Final answer
    x = 50,981.71

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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.