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Finding the Third Proportional to 813 and 1,466

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Solution

The third proportional to 813 and 1,466 is: 2,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    813 : 1,466 = 1,466 : x
  2. Step 2: Convert to fraction form
    813/1,466 = 1,466/x
  3. Step 3: Cross multiply
    813x = 1,466 × 1,466
  4. Step 4: Simplify right side
    813x = 2,149,156
  5. Step 5: Solve for x
    x = 2,149,156/813
  6. Step 6: Final answer
    x = 2,643.49

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.