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Finding the Third Proportional to 4,404 and 8,178

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Solution

The third proportional to 4,404 and 8,178 is: 15,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,404 : 8,178 = 8,178 : x
  2. Step 2: Convert to fraction form
    4,404/8,178 = 8,178/x
  3. Step 3: Cross multiply
    4,404x = 8,178 × 8,178
  4. Step 4: Simplify right side
    4,404x = 66,879,684
  5. Step 5: Solve for x
    x = 66,879,684/4,404
  6. Step 6: Final answer
    x = 15,186.12

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.