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Finding the Third Proportional to 31,379.50 and 48,925

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Solution

The third proportional to 31,379.50 and 48,925 is: 76,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.50 : 48,925 = 48,925 : x
  2. Step 2: Convert to fraction form
    31,379.50/48,925 = 48,925/x
  3. Step 3: Cross multiply
    31,379.50x = 48,925 × 48,925
  4. Step 4: Simplify right side
    31,379.50x = 2,393,655,625
  5. Step 5: Solve for x
    x = 2,393,655,625/31,379.50
  6. Step 6: Final answer
    x = 76,280.87

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.