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Finding the Third Proportional to 1,158 and 1,734

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Solution

The third proportional to 1,158 and 1,734 is: 2,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158 : 1,734 = 1,734 : x
  2. Step 2: Convert to fraction form
    1,158/1,734 = 1,734/x
  3. Step 3: Cross multiply
    1,158x = 1,734 × 1,734
  4. Step 4: Simplify right side
    1,158x = 3,006,756
  5. Step 5: Solve for x
    x = 3,006,756/1,158
  6. Step 6: Final answer
    x = 2,596.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.