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Finding the Fourth Proportional to 100,562.34, 150,843.39 and 25,682.55

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Solution

The fourth proportional to 100,562.34, 150,843.39 and 25,682.55 is: 38,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,562.34 : 150,843.39 = 25,682.55 : x
  2. Step 2: Convert to fraction form
    100,562.34/150,843.39 = 25,682.55/x
  3. Step 3: Cross multiply
    100,562.34x = 150,843.39 × 25,682.55
  4. Step 4: Simplify right side
    100,562.34x = 3,874,042,905.84
  5. Step 5: Solve for x
    x = 3,874,042,905.84/100,562.34
  6. Step 6: Final answer
    x = 38,523.79

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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.