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Finding the Third Proportional to 27,372 and 39,141

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Solution

The third proportional to 27,372 and 39,141 is: 55,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,372 : 39,141 = 39,141 : x
  2. Step 2: Convert to fraction form
    27,372/39,141 = 39,141/x
  3. Step 3: Cross multiply
    27,372x = 39,141 × 39,141
  4. Step 4: Simplify right side
    27,372x = 1,532,017,881
  5. Step 5: Solve for x
    x = 1,532,017,881/27,372
  6. Step 6: Final answer
    x = 55,970.26

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.