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Finding the Third Proportional to 2,530 and 5,492

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Solution

The third proportional to 2,530 and 5,492 is: 11,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530 : 5,492 = 5,492 : x
  2. Step 2: Convert to fraction form
    2,530/5,492 = 5,492/x
  3. Step 3: Cross multiply
    2,530x = 5,492 × 5,492
  4. Step 4: Simplify right side
    2,530x = 30,162,064
  5. Step 5: Solve for x
    x = 30,162,064/2,530
  6. Step 6: Final answer
    x = 11,921.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.