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Finding the Third Proportional to 31,248 and 48,245

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Solution

The third proportional to 31,248 and 48,245 is: 74,487.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248 : 48,245 = 48,245 : x
  2. Step 2: Convert to fraction form
    31,248/48,245 = 48,245/x
  3. Step 3: Cross multiply
    31,248x = 48,245 × 48,245
  4. Step 4: Simplify right side
    31,248x = 2,327,580,025
  5. Step 5: Solve for x
    x = 2,327,580,025/31,248
  6. Step 6: Final answer
    x = 74,487.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.