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Finding the Fourth Proportional to 29,863.79, 44,749.16 and 11,138.77

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Solution

The fourth proportional to 29,863.79, 44,749.16 and 11,138.77 is: 16,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,863.79 : 44,749.16 = 11,138.77 : x
  2. Step 2: Convert to fraction form
    29,863.79/44,749.16 = 11,138.77/x
  3. Step 3: Cross multiply
    29,863.79x = 44,749.16 × 11,138.77
  4. Step 4: Simplify right side
    29,863.79x = 498,450,391.23
  5. Step 5: Solve for x
    x = 498,450,391.23/29,863.79
  6. Step 6: Final answer
    x = 16,690.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.