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Finding the Third Proportional to 868.50 and 1,514.75

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Solution

The third proportional to 868.50 and 1,514.75 is: 2,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.50 : 1,514.75 = 1,514.75 : x
  2. Step 2: Convert to fraction form
    868.50/1,514.75 = 1,514.75/x
  3. Step 3: Cross multiply
    868.50x = 1,514.75 × 1,514.75
  4. Step 4: Simplify right side
    868.50x = 2,294,467.56
  5. Step 5: Solve for x
    x = 2,294,467.56/868.50
  6. Step 6: Final answer
    x = 2,641.87

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.