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Finding the Third Proportional to 28,431 and 41,910.75

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Solution

The third proportional to 28,431 and 41,910.75 is: 61,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431 : 41,910.75 = 41,910.75 : x
  2. Step 2: Convert to fraction form
    28,431/41,910.75 = 41,910.75/x
  3. Step 3: Cross multiply
    28,431x = 41,910.75 × 41,910.75
  4. Step 4: Simplify right side
    28,431x = 1,756,510,965.56
  5. Step 5: Solve for x
    x = 1,756,510,965.56/28,431
  6. Step 6: Final answer
    x = 61,781.54

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.