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Finding the Third Proportional to 4,184 and 8,688

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Solution

The third proportional to 4,184 and 8,688 is: 18,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,184 : 8,688 = 8,688 : x
  2. Step 2: Convert to fraction form
    4,184/8,688 = 8,688/x
  3. Step 3: Cross multiply
    4,184x = 8,688 × 8,688
  4. Step 4: Simplify right side
    4,184x = 75,481,344
  5. Step 5: Solve for x
    x = 75,481,344/4,184
  6. Step 6: Final answer
    x = 18,040.47

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.