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Finding the Third Proportional to 5,805 and 12,646

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Solution

The third proportional to 5,805 and 12,646 is: 27,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805 : 12,646 = 12,646 : x
  2. Step 2: Convert to fraction form
    5,805/12,646 = 12,646/x
  3. Step 3: Cross multiply
    5,805x = 12,646 × 12,646
  4. Step 4: Simplify right side
    5,805x = 159,921,316
  5. Step 5: Solve for x
    x = 159,921,316/5,805
  6. Step 6: Final answer
    x = 27,548.89

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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.