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Finding the Third Proportional to 1,851.75 and 3,963.94

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Solution

The third proportional to 1,851.75 and 3,963.94 is: 8,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.75 : 3,963.94 = 3,963.94 : x
  2. Step 2: Convert to fraction form
    1,851.75/3,963.94 = 3,963.94/x
  3. Step 3: Cross multiply
    1,851.75x = 3,963.94 × 3,963.94
  4. Step 4: Simplify right side
    1,851.75x = 15,712,800.50
  5. Step 5: Solve for x
    x = 15,712,800.50/1,851.75
  6. Step 6: Final answer
    x = 8,485.38

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.