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Finding the Third Proportional to 27,912 and 40,275

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Solution

The third proportional to 27,912 and 40,275 is: 58,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912 : 40,275 = 40,275 : x
  2. Step 2: Convert to fraction form
    27,912/40,275 = 40,275/x
  3. Step 3: Cross multiply
    27,912x = 40,275 × 40,275
  4. Step 4: Simplify right side
    27,912x = 1,622,075,625
  5. Step 5: Solve for x
    x = 1,622,075,625/27,912
  6. Step 6: Final answer
    x = 58,113.92

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.