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Finding the Third Proportional to 5,222.81 and 11,615.06

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Solution

The third proportional to 5,222.81 and 11,615.06 is: 25,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.81 : 11,615.06 = 11,615.06 : x
  2. Step 2: Convert to fraction form
    5,222.81/11,615.06 = 11,615.06/x
  3. Step 3: Cross multiply
    5,222.81x = 11,615.06 × 11,615.06
  4. Step 4: Simplify right side
    5,222.81x = 134,909,676.88
  5. Step 5: Solve for x
    x = 134,909,676.88/5,222.81
  6. Step 6: Final answer
    x = 25,830.85

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.