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Finding the Third Proportional to 18,650.25 and 28,059.75

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Solution

The third proportional to 18,650.25 and 28,059.75 is: 42,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.25 : 28,059.75 = 28,059.75 : x
  2. Step 2: Convert to fraction form
    18,650.25/28,059.75 = 28,059.75/x
  3. Step 3: Cross multiply
    18,650.25x = 28,059.75 × 28,059.75
  4. Step 4: Simplify right side
    18,650.25x = 787,349,570.06
  5. Step 5: Solve for x
    x = 787,349,570.06/18,650.25
  6. Step 6: Final answer
    x = 42,216.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.