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Finding the Third Proportional to 18,564.75 and 40,205.25

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Solution

The third proportional to 18,564.75 and 40,205.25 is: 87,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.75 : 40,205.25 = 40,205.25 : x
  2. Step 2: Convert to fraction form
    18,564.75/40,205.25 = 40,205.25/x
  3. Step 3: Cross multiply
    18,564.75x = 40,205.25 × 40,205.25
  4. Step 4: Simplify right side
    18,564.75x = 1,616,462,127.56
  5. Step 5: Solve for x
    x = 1,616,462,127.56/18,564.75
  6. Step 6: Final answer
    x = 87,071.58

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.