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Finding the Third Proportional to 28,219.50 and 39,865.50

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Solution

The third proportional to 28,219.50 and 39,865.50 is: 56,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.50 : 39,865.50 = 39,865.50 : x
  2. Step 2: Convert to fraction form
    28,219.50/39,865.50 = 39,865.50/x
  3. Step 3: Cross multiply
    28,219.50x = 39,865.50 × 39,865.50
  4. Step 4: Simplify right side
    28,219.50x = 1,589,258,090.25
  5. Step 5: Solve for x
    x = 1,589,258,090.25/28,219.50
  6. Step 6: Final answer
    x = 56,317.73

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.