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Finding the Third Proportional to 5,168 and 8,805

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Solution

The third proportional to 5,168 and 8,805 is: 15,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168 : 8,805 = 8,805 : x
  2. Step 2: Convert to fraction form
    5,168/8,805 = 8,805/x
  3. Step 3: Cross multiply
    5,168x = 8,805 × 8,805
  4. Step 4: Simplify right side
    5,168x = 77,528,025
  5. Step 5: Solve for x
    x = 77,528,025/5,168
  6. Step 6: Final answer
    x = 15,001.55

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.