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Finding the Third Proportional to 5,911.88 and 8,911.13

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Solution

The third proportional to 5,911.88 and 8,911.13 is: 13,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.88 : 8,911.13 = 8,911.13 : x
  2. Step 2: Convert to fraction form
    5,911.88/8,911.13 = 8,911.13/x
  3. Step 3: Cross multiply
    5,911.88x = 8,911.13 × 8,911.13
  4. Step 4: Simplify right side
    5,911.88x = 79,408,148.77
  5. Step 5: Solve for x
    x = 79,408,148.77/5,911.88
  6. Step 6: Final answer
    x = 13,431.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.