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Finding the Third Proportional to 961.88 and 2,009.81

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Solution

The third proportional to 961.88 and 2,009.81 is: 4,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    961.88 : 2,009.81 = 2,009.81 : x
  2. Step 2: Convert to fraction form
    961.88/2,009.81 = 2,009.81/x
  3. Step 3: Cross multiply
    961.88x = 2,009.81 × 2,009.81
  4. Step 4: Simplify right side
    961.88x = 4,039,346.29
  5. Step 5: Solve for x
    x = 4,039,346.29/961.88
  6. Step 6: Final answer
    x = 4,199.45

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.