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Finding the Third Proportional to 920.81 and 2,043.75

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Solution

The third proportional to 920.81 and 2,043.75 is: 4,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    920.81 : 2,043.75 = 2,043.75 : x
  2. Step 2: Convert to fraction form
    920.81/2,043.75 = 2,043.75/x
  3. Step 3: Cross multiply
    920.81x = 2,043.75 × 2,043.75
  4. Step 4: Simplify right side
    920.81x = 4,176,914.06
  5. Step 5: Solve for x
    x = 4,176,914.06/920.81
  6. Step 6: Final answer
    x = 4,536.12

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.