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Finding the Third Proportional to 894.75 and 1,980.75

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Solution

The third proportional to 894.75 and 1,980.75 is: 4,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.75 : 1,980.75 = 1,980.75 : x
  2. Step 2: Convert to fraction form
    894.75/1,980.75 = 1,980.75/x
  3. Step 3: Cross multiply
    894.75x = 1,980.75 × 1,980.75
  4. Step 4: Simplify right side
    894.75x = 3,923,370.56
  5. Step 5: Solve for x
    x = 3,923,370.56/894.75
  6. Step 6: Final answer
    x = 4,384.88

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.