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Finding the Third Proportional to 18,848 and 31,248

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Solution

The third proportional to 18,848 and 31,248 is: 51,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848 : 31,248 = 31,248 : x
  2. Step 2: Convert to fraction form
    18,848/31,248 = 31,248/x
  3. Step 3: Cross multiply
    18,848x = 31,248 × 31,248
  4. Step 4: Simplify right side
    18,848x = 976,437,504
  5. Step 5: Solve for x
    x = 976,437,504/18,848
  6. Step 6: Final answer
    x = 51,805.89

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.