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Finding the Third Proportional to 1,693 and 3,555

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Solution

The third proportional to 1,693 and 3,555 is: 7,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693 : 3,555 = 3,555 : x
  2. Step 2: Convert to fraction form
    1,693/3,555 = 3,555/x
  3. Step 3: Cross multiply
    1,693x = 3,555 × 3,555
  4. Step 4: Simplify right side
    1,693x = 12,638,025
  5. Step 5: Solve for x
    x = 12,638,025/1,693
  6. Step 6: Final answer
    x = 7,464.87

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.