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Finding the Fourth Proportional to 18,448.62, 27,700.80 and 14,739.84

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Solution

The fourth proportional to 18,448.62, 27,700.80 and 14,739.84 is: 22,132.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.62 : 27,700.80 = 14,739.84 : x
  2. Step 2: Convert to fraction form
    18,448.62/27,700.80 = 14,739.84/x
  3. Step 3: Cross multiply
    18,448.62x = 27,700.80 × 14,739.84
  4. Step 4: Simplify right side
    18,448.62x = 408,305,359.87
  5. Step 5: Solve for x
    x = 408,305,359.87/18,448.62
  6. Step 6: Final answer
    x = 22,132.03

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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.