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Finding the Third Proportional to 18,415.44 and 40,204.28

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Solution

The third proportional to 18,415.44 and 40,204.28 is: 87,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.44 : 40,204.28 = 40,204.28 : x
  2. Step 2: Convert to fraction form
    18,415.44/40,204.28 = 40,204.28/x
  3. Step 3: Cross multiply
    18,415.44x = 40,204.28 × 40,204.28
  4. Step 4: Simplify right side
    18,415.44x = 1,616,384,034.52
  5. Step 5: Solve for x
    x = 1,616,384,034.52/18,415.44
  6. Step 6: Final answer
    x = 87,773.32

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.