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Finding the Third Proportional to 585 and 1,273

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Solution

The third proportional to 585 and 1,273 is: 2,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    585 : 1,273 = 1,273 : x
  2. Step 2: Convert to fraction form
    585/1,273 = 1,273/x
  3. Step 3: Cross multiply
    585x = 1,273 × 1,273
  4. Step 4: Simplify right side
    585x = 1,620,529
  5. Step 5: Solve for x
    x = 1,620,529/585
  6. Step 6: Final answer
    x = 2,770.14

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.