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Finding the Fourth Proportional to 14,358.51, 19,815.51 and 8,393.67

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Solution

The fourth proportional to 14,358.51, 19,815.51 and 8,393.67 is: 11,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.51 : 19,815.51 = 8,393.67 : x
  2. Step 2: Convert to fraction form
    14,358.51/19,815.51 = 8,393.67/x
  3. Step 3: Cross multiply
    14,358.51x = 19,815.51 × 8,393.67
  4. Step 4: Simplify right side
    14,358.51x = 166,324,777.51
  5. Step 5: Solve for x
    x = 166,324,777.51/14,358.51
  6. Step 6: Final answer
    x = 11,583.71

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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.