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Finding the Third Proportional to 26,431.50 and 57,219

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Solution

The third proportional to 26,431.50 and 57,219 is: 123,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.50 : 57,219 = 57,219 : x
  2. Step 2: Convert to fraction form
    26,431.50/57,219 = 57,219/x
  3. Step 3: Cross multiply
    26,431.50x = 57,219 × 57,219
  4. Step 4: Simplify right side
    26,431.50x = 3,274,013,961
  5. Step 5: Solve for x
    x = 3,274,013,961/26,431.50
  6. Step 6: Final answer
    x = 123,867.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.