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Finding the Third Proportional to 5,463 and 8,190

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Solution

The third proportional to 5,463 and 8,190 is: 12,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,463 : 8,190 = 8,190 : x
  2. Step 2: Convert to fraction form
    5,463/8,190 = 8,190/x
  3. Step 3: Cross multiply
    5,463x = 8,190 × 8,190
  4. Step 4: Simplify right side
    5,463x = 67,076,100
  5. Step 5: Solve for x
    x = 67,076,100/5,463
  6. Step 6: Final answer
    x = 12,278.25

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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.