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Finding the Third Proportional to 5,518 and 12,926

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Solution

The third proportional to 5,518 and 12,926 is: 30,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518 : 12,926 = 12,926 : x
  2. Step 2: Convert to fraction form
    5,518/12,926 = 12,926/x
  3. Step 3: Cross multiply
    5,518x = 12,926 × 12,926
  4. Step 4: Simplify right side
    5,518x = 167,081,476
  5. Step 5: Solve for x
    x = 167,081,476/5,518
  6. Step 6: Final answer
    x = 30,279.35

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.