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Finding the Fourth Proportional to 31,836.34, 43,888.53 and 22,375.54

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Solution

The fourth proportional to 31,836.34, 43,888.53 and 22,375.54 is: 30,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.34 : 43,888.53 = 22,375.54 : x
  2. Step 2: Convert to fraction form
    31,836.34/43,888.53 = 22,375.54/x
  3. Step 3: Cross multiply
    31,836.34x = 43,888.53 × 22,375.54
  4. Step 4: Simplify right side
    31,836.34x = 982,029,558.56
  5. Step 5: Solve for x
    x = 982,029,558.56/31,836.34
  6. Step 6: Final answer
    x = 30,846.18

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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.