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Finding the Third Proportional to 4,047 and 8,856

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Solution

The third proportional to 4,047 and 8,856 is: 19,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047 : 8,856 = 8,856 : x
  2. Step 2: Convert to fraction form
    4,047/8,856 = 8,856/x
  3. Step 3: Cross multiply
    4,047x = 8,856 × 8,856
  4. Step 4: Simplify right side
    4,047x = 78,428,736
  5. Step 5: Solve for x
    x = 78,428,736/4,047
  6. Step 6: Final answer
    x = 19,379.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.