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Finding the Third Proportional to 907 and 1,901

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Solution

The third proportional to 907 and 1,901 is: 3,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    907 : 1,901 = 1,901 : x
  2. Step 2: Convert to fraction form
    907/1,901 = 1,901/x
  3. Step 3: Cross multiply
    907x = 1,901 × 1,901
  4. Step 4: Simplify right side
    907x = 3,613,801
  5. Step 5: Solve for x
    x = 3,613,801/907
  6. Step 6: Final answer
    x = 3,984.35

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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.