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Finding the Third Proportional to 1,688 and 2,593

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Solution

The third proportional to 1,688 and 2,593 is: 3,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688 : 2,593 = 2,593 : x
  2. Step 2: Convert to fraction form
    1,688/2,593 = 2,593/x
  3. Step 3: Cross multiply
    1,688x = 2,593 × 2,593
  4. Step 4: Simplify right side
    1,688x = 6,723,649
  5. Step 5: Solve for x
    x = 6,723,649/1,688
  6. Step 6: Final answer
    x = 3,983.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.