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Finding the Third Proportional to 25,991 and 40,228

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Solution

The third proportional to 25,991 and 40,228 is: 62,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991 : 40,228 = 40,228 : x
  2. Step 2: Convert to fraction form
    25,991/40,228 = 40,228/x
  3. Step 3: Cross multiply
    25,991x = 40,228 × 40,228
  4. Step 4: Simplify right side
    25,991x = 1,618,291,984
  5. Step 5: Solve for x
    x = 1,618,291,984/25,991
  6. Step 6: Final answer
    x = 62,263.55

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.