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Finding the Fourth Proportional to 71,855.46, 107,783.82 and 25,108.44

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Solution

The fourth proportional to 71,855.46, 107,783.82 and 25,108.44 is: 37,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,855.46 : 107,783.82 = 25,108.44 : x
  2. Step 2: Convert to fraction form
    71,855.46/107,783.82 = 25,108.44/x
  3. Step 3: Cross multiply
    71,855.46x = 107,783.82 × 25,108.44
  4. Step 4: Simplify right side
    71,855.46x = 2,706,283,577.44
  5. Step 5: Solve for x
    x = 2,706,283,577.44/71,855.46
  6. Step 6: Final answer
    x = 37,662.88

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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.