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Finding the Fourth Proportional to 71,962.44, 107,877.90 and 25,189.80

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Solution

The fourth proportional to 71,962.44, 107,877.90 and 25,189.80 is: 37,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962.44 : 107,877.90 = 25,189.80 : x
  2. Step 2: Convert to fraction form
    71,962.44/107,877.90 = 25,189.80/x
  3. Step 3: Cross multiply
    71,962.44x = 107,877.90 × 25,189.80
  4. Step 4: Simplify right side
    71,962.44x = 2,717,422,725.42
  5. Step 5: Solve for x
    x = 2,717,422,725.42/71,962.44
  6. Step 6: Final answer
    x = 37,761.68

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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.