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Finding the Fourth Proportional to 57,958.60, 86,937.90 and 43,961.80

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Solution

The fourth proportional to 57,958.60, 86,937.90 and 43,961.80 is: 65,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,958.60 : 86,937.90 = 43,961.80 : x
  2. Step 2: Convert to fraction form
    57,958.60/86,937.90 = 43,961.80/x
  3. Step 3: Cross multiply
    57,958.60x = 86,937.90 × 43,961.80
  4. Step 4: Simplify right side
    57,958.60x = 3,821,946,572.22
  5. Step 5: Solve for x
    x = 3,821,946,572.22/57,958.60
  6. Step 6: Final answer
    x = 65,942.70

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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.