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Finding the Third Proportional to 5,789 and 8,670

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Solution

The third proportional to 5,789 and 8,670 is: 12,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789 : 8,670 = 8,670 : x
  2. Step 2: Convert to fraction form
    5,789/8,670 = 8,670/x
  3. Step 3: Cross multiply
    5,789x = 8,670 × 8,670
  4. Step 4: Simplify right side
    5,789x = 75,168,900
  5. Step 5: Solve for x
    x = 75,168,900/5,789
  6. Step 6: Final answer
    x = 12,984.78

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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.