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Finding the Third Proportional to 47,174 and 69,879

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Solution

The third proportional to 47,174 and 69,879 is: 103,511.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,174 : 69,879 = 69,879 : x
  2. Step 2: Convert to fraction form
    47,174/69,879 = 69,879/x
  3. Step 3: Cross multiply
    47,174x = 69,879 × 69,879
  4. Step 4: Simplify right side
    47,174x = 4,883,074,641
  5. Step 5: Solve for x
    x = 4,883,074,641/47,174
  6. Step 6: Final answer
    x = 103,511.99

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.