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Finding the Third Proportional to 18,511.50 and 29,440.50

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Solution

The third proportional to 18,511.50 and 29,440.50 is: 46,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.50 : 29,440.50 = 29,440.50 : x
  2. Step 2: Convert to fraction form
    18,511.50/29,440.50 = 29,440.50/x
  3. Step 3: Cross multiply
    18,511.50x = 29,440.50 × 29,440.50
  4. Step 4: Simplify right side
    18,511.50x = 866,743,040.25
  5. Step 5: Solve for x
    x = 866,743,040.25/18,511.50
  6. Step 6: Final answer
    x = 46,821.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.