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Finding the Fourth Proportional to 55,713.44, 76,890.07 and 31,843.54

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Solution

The fourth proportional to 55,713.44, 76,890.07 and 31,843.54 is: 43,947.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,713.44 : 76,890.07 = 31,843.54 : x
  2. Step 2: Convert to fraction form
    55,713.44/76,890.07 = 31,843.54/x
  3. Step 3: Cross multiply
    55,713.44x = 76,890.07 × 31,843.54
  4. Step 4: Simplify right side
    55,713.44x = 2,448,452,019.65
  5. Step 5: Solve for x
    x = 2,448,452,019.65/55,713.44
  6. Step 6: Final answer
    x = 43,947.24

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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.