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Finding the Third Proportional to 31,135 and 48,343

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Solution

The third proportional to 31,135 and 48,343 is: 75,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135 : 48,343 = 48,343 : x
  2. Step 2: Convert to fraction form
    31,135/48,343 = 48,343/x
  3. Step 3: Cross multiply
    31,135x = 48,343 × 48,343
  4. Step 4: Simplify right side
    31,135x = 2,337,045,649
  5. Step 5: Solve for x
    x = 2,337,045,649/31,135
  6. Step 6: Final answer
    x = 75,061.69

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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.