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Finding the Fourth Proportional to 19,183.85, 26,474.16 and 10,686.54

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Solution

The fourth proportional to 19,183.85, 26,474.16 and 10,686.54 is: 14,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.85 : 26,474.16 = 10,686.54 : x
  2. Step 2: Convert to fraction form
    19,183.85/26,474.16 = 10,686.54/x
  3. Step 3: Cross multiply
    19,183.85x = 26,474.16 × 10,686.54
  4. Step 4: Simplify right side
    19,183.85x = 282,917,169.81
  5. Step 5: Solve for x
    x = 282,917,169.81/19,183.85
  6. Step 6: Final answer
    x = 14,747.68

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