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Finding the Third Proportional to 989 and 1,952

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Solution

The third proportional to 989 and 1,952 is: 3,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    989 : 1,952 = 1,952 : x
  2. Step 2: Convert to fraction form
    989/1,952 = 1,952/x
  3. Step 3: Cross multiply
    989x = 1,952 × 1,952
  4. Step 4: Simplify right side
    989x = 3,810,304
  5. Step 5: Solve for x
    x = 3,810,304/989
  6. Step 6: Final answer
    x = 3,852.68

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.