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Finding the Third Proportional to 908 and 1,907

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Solution

The third proportional to 908 and 1,907 is: 4,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    908 : 1,907 = 1,907 : x
  2. Step 2: Convert to fraction form
    908/1,907 = 1,907/x
  3. Step 3: Cross multiply
    908x = 1,907 × 1,907
  4. Step 4: Simplify right side
    908x = 3,636,649
  5. Step 5: Solve for x
    x = 3,636,649/908
  6. Step 6: Final answer
    x = 4,005.12

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.