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Finding the Third Proportional to 18,759.50 and 28,616

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Solution

The third proportional to 18,759.50 and 28,616 is: 43,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.50 : 28,616 = 28,616 : x
  2. Step 2: Convert to fraction form
    18,759.50/28,616 = 28,616/x
  3. Step 3: Cross multiply
    18,759.50x = 28,616 × 28,616
  4. Step 4: Simplify right side
    18,759.50x = 818,875,456
  5. Step 5: Solve for x
    x = 818,875,456/18,759.50
  6. Step 6: Final answer
    x = 43,651.24

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.