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Finding the Third Proportional to 57,344 and 86,880

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Solution

The third proportional to 57,344 and 86,880 is: 131,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,344 : 86,880 = 86,880 : x
  2. Step 2: Convert to fraction form
    57,344/86,880 = 86,880/x
  3. Step 3: Cross multiply
    57,344x = 86,880 × 86,880
  4. Step 4: Simplify right side
    57,344x = 7,548,134,400
  5. Step 5: Solve for x
    x = 7,548,134,400/57,344
  6. Step 6: Final answer
    x = 131,629.02

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.