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Finding the Third Proportional to 576.94 and 865.88

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Solution

The third proportional to 576.94 and 865.88 is: 1,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.94 : 865.88 = 865.88 : x
  2. Step 2: Convert to fraction form
    576.94/865.88 = 865.88/x
  3. Step 3: Cross multiply
    576.94x = 865.88 × 865.88
  4. Step 4: Simplify right side
    576.94x = 749,739.52
  5. Step 5: Solve for x
    x = 749,739.52/576.94
  6. Step 6: Final answer
    x = 1,299.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.