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Finding the Third Proportional to 5,426 and 6,817

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Solution

The third proportional to 5,426 and 6,817 is: 8,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426 : 6,817 = 6,817 : x
  2. Step 2: Convert to fraction form
    5,426/6,817 = 6,817/x
  3. Step 3: Cross multiply
    5,426x = 6,817 × 6,817
  4. Step 4: Simplify right side
    5,426x = 46,471,489
  5. Step 5: Solve for x
    x = 46,471,489/5,426
  6. Step 6: Final answer
    x = 8,564.59

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.