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Finding the Third Proportional to 863 and 1,294

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Solution

The third proportional to 863 and 1,294 is: 1,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    863 : 1,294 = 1,294 : x
  2. Step 2: Convert to fraction form
    863/1,294 = 1,294/x
  3. Step 3: Cross multiply
    863x = 1,294 × 1,294
  4. Step 4: Simplify right side
    863x = 1,674,436
  5. Step 5: Solve for x
    x = 1,674,436/863
  6. Step 6: Final answer
    x = 1,940.25

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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.