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Finding the Third Proportional to 4,518 and 4,918

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Solution

The third proportional to 4,518 and 4,918 is: 5,353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518 : 4,918 = 4,918 : x
  2. Step 2: Convert to fraction form
    4,518/4,918 = 4,918/x
  3. Step 3: Cross multiply
    4,518x = 4,918 × 4,918
  4. Step 4: Simplify right side
    4,518x = 24,186,724
  5. Step 5: Solve for x
    x = 24,186,724/4,518
  6. Step 6: Final answer
    x = 5,353.41

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.