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Finding the Third Proportional to 772.88 and 1,586.25

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Solution

The third proportional to 772.88 and 1,586.25 is: 3,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    772.88 : 1,586.25 = 1,586.25 : x
  2. Step 2: Convert to fraction form
    772.88/1,586.25 = 1,586.25/x
  3. Step 3: Cross multiply
    772.88x = 1,586.25 × 1,586.25
  4. Step 4: Simplify right side
    772.88x = 2,516,189.06
  5. Step 5: Solve for x
    x = 2,516,189.06/772.88
  6. Step 6: Final answer
    x = 3,255.62

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.