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Finding the Third Proportional to 2,146 and 2,876

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Solution

The third proportional to 2,146 and 2,876 is: 3,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146 : 2,876 = 2,876 : x
  2. Step 2: Convert to fraction form
    2,146/2,876 = 2,876/x
  3. Step 3: Cross multiply
    2,146x = 2,876 × 2,876
  4. Step 4: Simplify right side
    2,146x = 8,271,376
  5. Step 5: Solve for x
    x = 8,271,376/2,146
  6. Step 6: Final answer
    x = 3,854.32

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.