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Finding the Third Proportional to 31,070 and 48,198

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Solution

The third proportional to 31,070 and 48,198 is: 74,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070 : 48,198 = 48,198 : x
  2. Step 2: Convert to fraction form
    31,070/48,198 = 48,198/x
  3. Step 3: Cross multiply
    31,070x = 48,198 × 48,198
  4. Step 4: Simplify right side
    31,070x = 2,323,047,204
  5. Step 5: Solve for x
    x = 2,323,047,204/31,070
  6. Step 6: Final answer
    x = 74,768.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.