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Finding the Fourth Proportional to 51,395.64, 70,922.07 and 31,249.73

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Solution

The fourth proportional to 51,395.64, 70,922.07 and 31,249.73 is: 43,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,395.64 : 70,922.07 = 31,249.73 : x
  2. Step 2: Convert to fraction form
    51,395.64/70,922.07 = 31,249.73/x
  3. Step 3: Cross multiply
    51,395.64x = 70,922.07 × 31,249.73
  4. Step 4: Simplify right side
    51,395.64x = 2,216,295,183.93
  5. Step 5: Solve for x
    x = 2,216,295,183.93/51,395.64
  6. Step 6: Final answer
    x = 43,122.24

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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.