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Finding the Fourth Proportional to 18,482.72, 27,723.47 and 5,336.42

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Solution

The fourth proportional to 18,482.72, 27,723.47 and 5,336.42 is: 8,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.72 : 27,723.47 = 5,336.42 : x
  2. Step 2: Convert to fraction form
    18,482.72/27,723.47 = 5,336.42/x
  3. Step 3: Cross multiply
    18,482.72x = 27,723.47 × 5,336.42
  4. Step 4: Simplify right side
    18,482.72x = 147,943,914.48
  5. Step 5: Solve for x
    x = 147,943,914.48/18,482.72
  6. Step 6: Final answer
    x = 8,004.45

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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.