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Finding the Third Proportional to 27,120 and 41,760

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Solution

The third proportional to 27,120 and 41,760 is: 64,303.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120 : 41,760 = 41,760 : x
  2. Step 2: Convert to fraction form
    27,120/41,760 = 41,760/x
  3. Step 3: Cross multiply
    27,120x = 41,760 × 41,760
  4. Step 4: Simplify right side
    27,120x = 1,743,897,600
  5. Step 5: Solve for x
    x = 1,743,897,600/27,120
  6. Step 6: Final answer
    x = 64,303.01

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.