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Finding the Third Proportional to 5,242 and 8,045

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Solution

The third proportional to 5,242 and 8,045 is: 12,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242 : 8,045 = 8,045 : x
  2. Step 2: Convert to fraction form
    5,242/8,045 = 8,045/x
  3. Step 3: Cross multiply
    5,242x = 8,045 × 8,045
  4. Step 4: Simplify right side
    5,242x = 64,722,025
  5. Step 5: Solve for x
    x = 64,722,025/5,242
  6. Step 6: Final answer
    x = 12,346.82

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.