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Finding the Third Proportional to 1,425.94 and 1,919.11

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Solution

The third proportional to 1,425.94 and 1,919.11 is: 2,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.94 : 1,919.11 = 1,919.11 : x
  2. Step 2: Convert to fraction form
    1,425.94/1,919.11 = 1,919.11/x
  3. Step 3: Cross multiply
    1,425.94x = 1,919.11 × 1,919.11
  4. Step 4: Simplify right side
    1,425.94x = 3,682,980.79
  5. Step 5: Solve for x
    x = 3,682,980.79/1,425.94
  6. Step 6: Final answer
    x = 2,582.85

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.