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Finding the Third Proportional to 18,760.36 and 39,673.55

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Solution

The third proportional to 18,760.36 and 39,673.55 is: 83,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.36 : 39,673.55 = 39,673.55 : x
  2. Step 2: Convert to fraction form
    18,760.36/39,673.55 = 39,673.55/x
  3. Step 3: Cross multiply
    18,760.36x = 39,673.55 × 39,673.55
  4. Step 4: Simplify right side
    18,760.36x = 1,573,990,321.64
  5. Step 5: Solve for x
    x = 1,573,990,321.64/18,760.36
  6. Step 6: Final answer
    x = 83,899.80

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.