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Finding the Fourth Proportional to 18,374.72, 27,564.66 and 5,891.81

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Solution

The fourth proportional to 18,374.72, 27,564.66 and 5,891.81 is: 8,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.72 : 27,564.66 = 5,891.81 : x
  2. Step 2: Convert to fraction form
    18,374.72/27,564.66 = 5,891.81/x
  3. Step 3: Cross multiply
    18,374.72x = 27,564.66 × 5,891.81
  4. Step 4: Simplify right side
    18,374.72x = 162,405,808.35
  5. Step 5: Solve for x
    x = 162,405,808.35/18,374.72
  6. Step 6: Final answer
    x = 8,838.54

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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.