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Finding the Third Proportional to 6,990 and 14,763

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Solution

The third proportional to 6,990 and 14,763 is: 31,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990 : 14,763 = 14,763 : x
  2. Step 2: Convert to fraction form
    6,990/14,763 = 14,763/x
  3. Step 3: Cross multiply
    6,990x = 14,763 × 14,763
  4. Step 4: Simplify right side
    6,990x = 217,946,169
  5. Step 5: Solve for x
    x = 217,946,169/6,990
  6. Step 6: Final answer
    x = 31,179.71

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.