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Finding the Third Proportional to 2,563 and 2,915

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Solution

The third proportional to 2,563 and 2,915 is: 3,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563 : 2,915 = 2,915 : x
  2. Step 2: Convert to fraction form
    2,563/2,915 = 2,915/x
  3. Step 3: Cross multiply
    2,563x = 2,915 × 2,915
  4. Step 4: Simplify right side
    2,563x = 8,497,225
  5. Step 5: Solve for x
    x = 8,497,225/2,563
  6. Step 6: Final answer
    x = 3,315.34

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.