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Finding the Third Proportional to 20,317.50 and 48,942

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Solution

The third proportional to 20,317.50 and 48,942 is: 117,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.50 : 48,942 = 48,942 : x
  2. Step 2: Convert to fraction form
    20,317.50/48,942 = 48,942/x
  3. Step 3: Cross multiply
    20,317.50x = 48,942 × 48,942
  4. Step 4: Simplify right side
    20,317.50x = 2,395,319,364
  5. Step 5: Solve for x
    x = 2,395,319,364/20,317.50
  6. Step 6: Final answer
    x = 117,894.39

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.