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Finding the Fourth Proportional to 67,997.44, 101,996.16 and 21,250.72

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Solution

The fourth proportional to 67,997.44, 101,996.16 and 21,250.72 is: 31,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,997.44 : 101,996.16 = 21,250.72 : x
  2. Step 2: Convert to fraction form
    67,997.44/101,996.16 = 21,250.72/x
  3. Step 3: Cross multiply
    67,997.44x = 101,996.16 × 21,250.72
  4. Step 4: Simplify right side
    67,997.44x = 2,167,491,837.24
  5. Step 5: Solve for x
    x = 2,167,491,837.24/67,997.44
  6. Step 6: Final answer
    x = 31,876.08

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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.