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Finding the Third Proportional to 31,311 and 48,490.50

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Solution

The third proportional to 31,311 and 48,490.50 is: 75,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311 : 48,490.50 = 48,490.50 : x
  2. Step 2: Convert to fraction form
    31,311/48,490.50 = 48,490.50/x
  3. Step 3: Cross multiply
    31,311x = 48,490.50 × 48,490.50
  4. Step 4: Simplify right side
    31,311x = 2,351,328,590.25
  5. Step 5: Solve for x
    x = 2,351,328,590.25/31,311
  6. Step 6: Final answer
    x = 75,095.93

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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.