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Finding the Third Proportional to 18,833.77 and 39,606.47

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Solution

The third proportional to 18,833.77 and 39,606.47 is: 83,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.77 : 39,606.47 = 39,606.47 : x
  2. Step 2: Convert to fraction form
    18,833.77/39,606.47 = 39,606.47/x
  3. Step 3: Cross multiply
    18,833.77x = 39,606.47 × 39,606.47
  4. Step 4: Simplify right side
    18,833.77x = 1,568,672,366.84
  5. Step 5: Solve for x
    x = 1,568,672,366.84/18,833.77
  6. Step 6: Final answer
    x = 83,290.43

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.