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Finding the Fourth Proportional to 18,364.32, 27,540.81 and 5,883.84

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Solution

The fourth proportional to 18,364.32, 27,540.81 and 5,883.84 is: 8,823.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.32 : 27,540.81 = 5,883.84 : x
  2. Step 2: Convert to fraction form
    18,364.32/27,540.81 = 5,883.84/x
  3. Step 3: Cross multiply
    18,364.32x = 27,540.81 × 5,883.84
  4. Step 4: Simplify right side
    18,364.32x = 162,045,719.51
  5. Step 5: Solve for x
    x = 162,045,719.51/18,364.32
  6. Step 6: Final answer
    x = 8,823.94

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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.