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Finding the Fourth Proportional to 50,662.16, 69,911.60 and 27,999.98

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Solution

The fourth proportional to 50,662.16, 69,911.60 and 27,999.98 is: 38,638.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,662.16 : 69,911.60 = 27,999.98 : x
  2. Step 2: Convert to fraction form
    50,662.16/69,911.60 = 27,999.98/x
  3. Step 3: Cross multiply
    50,662.16x = 69,911.60 × 27,999.98
  4. Step 4: Simplify right side
    50,662.16x = 1,957,523,401.77
  5. Step 5: Solve for x
    x = 1,957,523,401.77/50,662.16
  6. Step 6: Final answer
    x = 38,638.77

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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.