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Finding the Third Proportional to 1,907 and 3,670

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Solution

The third proportional to 1,907 and 3,670 is: 7,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907 : 3,670 = 3,670 : x
  2. Step 2: Convert to fraction form
    1,907/3,670 = 3,670/x
  3. Step 3: Cross multiply
    1,907x = 3,670 × 3,670
  4. Step 4: Simplify right side
    1,907x = 13,468,900
  5. Step 5: Solve for x
    x = 13,468,900/1,907
  6. Step 6: Final answer
    x = 7,062.87

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.