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Finding the Third Proportional to 990.56 and 2,095.88

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Solution

The third proportional to 990.56 and 2,095.88 is: 4,434.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    990.56 : 2,095.88 = 2,095.88 : x
  2. Step 2: Convert to fraction form
    990.56/2,095.88 = 2,095.88/x
  3. Step 3: Cross multiply
    990.56x = 2,095.88 × 2,095.88
  4. Step 4: Simplify right side
    990.56x = 4,392,692.02
  5. Step 5: Solve for x
    x = 4,392,692.02/990.56
  6. Step 6: Final answer
    x = 4,434.54

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.