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Finding the Fourth Proportional to 18,469.68, 27,704.52 and 14,318.16

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Solution

The fourth proportional to 18,469.68, 27,704.52 and 14,318.16 is: 21,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.68 : 27,704.52 = 14,318.16 : x
  2. Step 2: Convert to fraction form
    18,469.68/27,704.52 = 14,318.16/x
  3. Step 3: Cross multiply
    18,469.68x = 27,704.52 × 14,318.16
  4. Step 4: Simplify right side
    18,469.68x = 396,677,750.08
  5. Step 5: Solve for x
    x = 396,677,750.08/18,469.68
  6. Step 6: Final answer
    x = 21,477.24

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1.5x scale

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.