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Finding the Third Proportional to 294.75 and 765.19

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Solution

The third proportional to 294.75 and 765.19 is: 1,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.75 : 765.19 = 765.19 : x
  2. Step 2: Convert to fraction form
    294.75/765.19 = 765.19/x
  3. Step 3: Cross multiply
    294.75x = 765.19 × 765.19
  4. Step 4: Simplify right side
    294.75x = 585,511.91
  5. Step 5: Solve for x
    x = 585,511.91/294.75
  6. Step 6: Final answer
    x = 1,986.47

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.