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Finding the Third Proportional to 18,618.19 and 43,913.39

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Solution

The third proportional to 18,618.19 and 43,913.39 is: 103,575.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.19 : 43,913.39 = 43,913.39 : x
  2. Step 2: Convert to fraction form
    18,618.19/43,913.39 = 43,913.39/x
  3. Step 3: Cross multiply
    18,618.19x = 43,913.39 × 43,913.39
  4. Step 4: Simplify right side
    18,618.19x = 1,928,385,876.18
  5. Step 5: Solve for x
    x = 1,928,385,876.18/18,618.19
  6. Step 6: Final answer
    x = 103,575.38

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.