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Finding the Third Proportional to 940.50 and 1,857

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Solution

The third proportional to 940.50 and 1,857 is: 3,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.50 : 1,857 = 1,857 : x
  2. Step 2: Convert to fraction form
    940.50/1,857 = 1,857/x
  3. Step 3: Cross multiply
    940.50x = 1,857 × 1,857
  4. Step 4: Simplify right side
    940.50x = 3,448,449
  5. Step 5: Solve for x
    x = 3,448,449/940.50
  6. Step 6: Final answer
    x = 3,666.61

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.