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Finding the Third Proportional to 694.83 and 1,513.05

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Solution

The third proportional to 694.83 and 1,513.05 is: 3,294.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.83 : 1,513.05 = 1,513.05 : x
  2. Step 2: Convert to fraction form
    694.83/1,513.05 = 1,513.05/x
  3. Step 3: Cross multiply
    694.83x = 1,513.05 × 1,513.05
  4. Step 4: Simplify right side
    694.83x = 2,289,334.49
  5. Step 5: Solve for x
    x = 2,289,334.49/694.83
  6. Step 6: Final answer
    x = 3,294.82

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.