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Finding the Third Proportional to 6,115.50 and 13,011

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Solution

The third proportional to 6,115.50 and 13,011 is: 27,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.50 : 13,011 = 13,011 : x
  2. Step 2: Convert to fraction form
    6,115.50/13,011 = 13,011/x
  3. Step 3: Cross multiply
    6,115.50x = 13,011 × 13,011
  4. Step 4: Simplify right side
    6,115.50x = 169,286,121
  5. Step 5: Solve for x
    x = 169,286,121/6,115.50
  6. Step 6: Final answer
    x = 27,681.48

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.