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Finding the Third Proportional to 3,865 and 5,783

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Solution

The third proportional to 3,865 and 5,783 is: 8,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865 : 5,783 = 5,783 : x
  2. Step 2: Convert to fraction form
    3,865/5,783 = 5,783/x
  3. Step 3: Cross multiply
    3,865x = 5,783 × 5,783
  4. Step 4: Simplify right side
    3,865x = 33,443,089
  5. Step 5: Solve for x
    x = 33,443,089/3,865
  6. Step 6: Final answer
    x = 8,652.80

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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.