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Finding the Fourth Proportional to 18,704.34, 27,919.67 and 16,490.07

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Solution

The fourth proportional to 18,704.34, 27,919.67 and 16,490.07 is: 24,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.34 : 27,919.67 = 16,490.07 : x
  2. Step 2: Convert to fraction form
    18,704.34/27,919.67 = 16,490.07/x
  3. Step 3: Cross multiply
    18,704.34x = 27,919.67 × 16,490.07
  4. Step 4: Simplify right side
    18,704.34x = 460,397,230.23
  5. Step 5: Solve for x
    x = 460,397,230.23/18,704.34
  6. Step 6: Final answer
    x = 24,614.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.