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Finding the Third Proportional to 1,949 and 4,117

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Solution

The third proportional to 1,949 and 4,117 is: 8,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949 : 4,117 = 4,117 : x
  2. Step 2: Convert to fraction form
    1,949/4,117 = 4,117/x
  3. Step 3: Cross multiply
    1,949x = 4,117 × 4,117
  4. Step 4: Simplify right side
    1,949x = 16,949,689
  5. Step 5: Solve for x
    x = 16,949,689/1,949
  6. Step 6: Final answer
    x = 8,696.61

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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.