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Finding the Third Proportional to 28,039.50 and 40,743

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Solution

The third proportional to 28,039.50 and 40,743 is: 59,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.50 : 40,743 = 40,743 : x
  2. Step 2: Convert to fraction form
    28,039.50/40,743 = 40,743/x
  3. Step 3: Cross multiply
    28,039.50x = 40,743 × 40,743
  4. Step 4: Simplify right side
    28,039.50x = 1,659,992,049
  5. Step 5: Solve for x
    x = 1,659,992,049/28,039.50
  6. Step 6: Final answer
    x = 59,201.91

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.