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Finding the Third Proportional to 25,222 and 40,639.50

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Solution

The third proportional to 25,222 and 40,639.50 is: 65,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,222 : 40,639.50 = 40,639.50 : x
  2. Step 2: Convert to fraction form
    25,222/40,639.50 = 40,639.50/x
  3. Step 3: Cross multiply
    25,222x = 40,639.50 × 40,639.50
  4. Step 4: Simplify right side
    25,222x = 1,651,568,960.25
  5. Step 5: Solve for x
    x = 1,651,568,960.25/25,222
  6. Step 6: Final answer
    x = 65,481.28

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.