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Finding the Fourth Proportional to 57,865.04, 86,796.92 and 43,910.76

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Solution

The fourth proportional to 57,865.04, 86,796.92 and 43,910.76 is: 65,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,865.04 : 86,796.92 = 43,910.76 : x
  2. Step 2: Convert to fraction form
    57,865.04/86,796.92 = 43,910.76/x
  3. Step 3: Cross multiply
    57,865.04x = 86,796.92 × 43,910.76
  4. Step 4: Simplify right side
    57,865.04x = 3,811,318,722.86
  5. Step 5: Solve for x
    x = 3,811,318,722.86/57,865.04
  6. Step 6: Final answer
    x = 65,865.65

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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.