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Finding the Third Proportional to 27,620 and 41,430

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Solution

The third proportional to 27,620 and 41,430 is: 62,145

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620 : 41,430 = 41,430 : x
  2. Step 2: Convert to fraction form
    27,620/41,430 = 41,430/x
  3. Step 3: Cross multiply
    27,620x = 41,430 × 41,430
  4. Step 4: Simplify right side
    27,620x = 1,716,444,900
  5. Step 5: Solve for x
    x = 1,716,444,900/27,620
  6. Step 6: Final answer
    x = 62,145

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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.