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Finding the Third Proportional to 15,311.85 and 33,727.64

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Solution

The third proportional to 15,311.85 and 33,727.64 is: 74,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.85 : 33,727.64 = 33,727.64 : x
  2. Step 2: Convert to fraction form
    15,311.85/33,727.64 = 33,727.64/x
  3. Step 3: Cross multiply
    15,311.85x = 33,727.64 × 33,727.64
  4. Step 4: Simplify right side
    15,311.85x = 1,137,553,742.13
  5. Step 5: Solve for x
    x = 1,137,553,742.13/15,311.85
  6. Step 6: Final answer
    x = 74,292.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.