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Finding the Third Proportional to 14,928 and 31,387

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Solution

The third proportional to 14,928 and 31,387 is: 65,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,928 : 31,387 = 31,387 : x
  2. Step 2: Convert to fraction form
    14,928/31,387 = 31,387/x
  3. Step 3: Cross multiply
    14,928x = 31,387 × 31,387
  4. Step 4: Simplify right side
    14,928x = 985,143,769
  5. Step 5: Solve for x
    x = 985,143,769/14,928
  6. Step 6: Final answer
    x = 65,993.02

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.