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Finding the Third Proportional to 4,318 and 8,838

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Solution

The third proportional to 4,318 and 8,838 is: 18,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,318 : 8,838 = 8,838 : x
  2. Step 2: Convert to fraction form
    4,318/8,838 = 8,838/x
  3. Step 3: Cross multiply
    4,318x = 8,838 × 8,838
  4. Step 4: Simplify right side
    4,318x = 78,110,244
  5. Step 5: Solve for x
    x = 78,110,244/4,318
  6. Step 6: Final answer
    x = 18,089.45

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.