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Finding the Third Proportional to 905.63 and 1,994.63

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Solution

The third proportional to 905.63 and 1,994.63 is: 4,393.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    905.63 : 1,994.63 = 1,994.63 : x
  2. Step 2: Convert to fraction form
    905.63/1,994.63 = 1,994.63/x
  3. Step 3: Cross multiply
    905.63x = 1,994.63 × 1,994.63
  4. Step 4: Simplify right side
    905.63x = 3,978,528.89
  5. Step 5: Solve for x
    x = 3,978,528.89/905.63
  6. Step 6: Final answer
    x = 4,393.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.