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Finding the Third Proportional to 18,943.88 and 29,205.56

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Solution

The third proportional to 18,943.88 and 29,205.56 is: 45,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.88 : 29,205.56 = 29,205.56 : x
  2. Step 2: Convert to fraction form
    18,943.88/29,205.56 = 29,205.56/x
  3. Step 3: Cross multiply
    18,943.88x = 29,205.56 × 29,205.56
  4. Step 4: Simplify right side
    18,943.88x = 852,964,880.94
  5. Step 5: Solve for x
    x = 852,964,880.94/18,943.88
  6. Step 6: Final answer
    x = 45,025.89

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.