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Finding the Third Proportional to 5,446.13 and 8,147.81

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Solution

The third proportional to 5,446.13 and 8,147.81 is: 12,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,446.13 : 8,147.81 = 8,147.81 : x
  2. Step 2: Convert to fraction form
    5,446.13/8,147.81 = 8,147.81/x
  3. Step 3: Cross multiply
    5,446.13x = 8,147.81 × 8,147.81
  4. Step 4: Simplify right side
    5,446.13x = 66,386,848.54
  5. Step 5: Solve for x
    x = 66,386,848.54/5,446.13
  6. Step 6: Final answer
    x = 12,189.74

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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.