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Finding the Third Proportional to 1,696.78 and 2,851.03

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Solution

The third proportional to 1,696.78 and 2,851.03 is: 4,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.78 : 2,851.03 = 2,851.03 : x
  2. Step 2: Convert to fraction form
    1,696.78/2,851.03 = 2,851.03/x
  3. Step 3: Cross multiply
    1,696.78x = 2,851.03 × 2,851.03
  4. Step 4: Simplify right side
    1,696.78x = 8,128,379.19
  5. Step 5: Solve for x
    x = 8,128,379.19/1,696.78
  6. Step 6: Final answer
    x = 4,790.47

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.