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Finding the Third Proportional to 18,441 and 39,511.50

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Solution

The third proportional to 18,441 and 39,511.50 is: 84,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441 : 39,511.50 = 39,511.50 : x
  2. Step 2: Convert to fraction form
    18,441/39,511.50 = 39,511.50/x
  3. Step 3: Cross multiply
    18,441x = 39,511.50 × 39,511.50
  4. Step 4: Simplify right side
    18,441x = 1,561,158,632.25
  5. Step 5: Solve for x
    x = 1,561,158,632.25/18,441
  6. Step 6: Final answer
    x = 84,656.94

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.