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Finding the Fourth Proportional to 64,015.80, 95,796.90 and 55,786.20

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Solution

The fourth proportional to 64,015.80, 95,796.90 and 55,786.20 is: 83,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,015.80 : 95,796.90 = 55,786.20 : x
  2. Step 2: Convert to fraction form
    64,015.80/95,796.90 = 55,786.20/x
  3. Step 3: Cross multiply
    64,015.80x = 95,796.90 × 55,786.20
  4. Step 4: Simplify right side
    64,015.80x = 5,344,145,022.78
  5. Step 5: Solve for x
    x = 5,344,145,022.78/64,015.80
  6. Step 6: Final answer
    x = 83,481.66

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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.