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Finding the Third Proportional to 2,620 and 4,591

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Solution

The third proportional to 2,620 and 4,591 is: 8,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620 : 4,591 = 4,591 : x
  2. Step 2: Convert to fraction form
    2,620/4,591 = 4,591/x
  3. Step 3: Cross multiply
    2,620x = 4,591 × 4,591
  4. Step 4: Simplify right side
    2,620x = 21,077,281
  5. Step 5: Solve for x
    x = 21,077,281/2,620
  6. Step 6: Final answer
    x = 8,044.76

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.