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Finding the Fourth Proportional to 61,949.92, 85,483.62 and 36,450.68

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Solution

The fourth proportional to 61,949.92, 85,483.62 and 36,450.68 is: 50,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,949.92 : 85,483.62 = 36,450.68 : x
  2. Step 2: Convert to fraction form
    61,949.92/85,483.62 = 36,450.68/x
  3. Step 3: Cross multiply
    61,949.92x = 85,483.62 × 36,450.68
  4. Step 4: Simplify right side
    61,949.92x = 3,115,936,077.86
  5. Step 5: Solve for x
    x = 3,115,936,077.86/61,949.92
  6. Step 6: Final answer
    x = 50,297.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.