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Finding the Fourth Proportional to 31,958.24, 47,917.32 and 9,764.24

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Solution

The fourth proportional to 31,958.24, 47,917.32 and 9,764.24 is: 14,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,958.24 : 47,917.32 = 9,764.24 : x
  2. Step 2: Convert to fraction form
    31,958.24/47,917.32 = 9,764.24/x
  3. Step 3: Cross multiply
    31,958.24x = 47,917.32 × 9,764.24
  4. Step 4: Simplify right side
    31,958.24x = 467,876,212.64
  5. Step 5: Solve for x
    x = 467,876,212.64/31,958.24
  6. Step 6: Final answer
    x = 14,640.24

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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.