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Finding the Third Proportional to 969.75 and 2,108.25

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Solution

The third proportional to 969.75 and 2,108.25 is: 4,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.75 : 2,108.25 = 2,108.25 : x
  2. Step 2: Convert to fraction form
    969.75/2,108.25 = 2,108.25/x
  3. Step 3: Cross multiply
    969.75x = 2,108.25 × 2,108.25
  4. Step 4: Simplify right side
    969.75x = 4,444,718.06
  5. Step 5: Solve for x
    x = 4,444,718.06/969.75
  6. Step 6: Final answer
    x = 4,583.36

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.