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Finding the Fourth Proportional to 18,832.14, 28,230.53 and 6,343.43

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Solution

The fourth proportional to 18,832.14, 28,230.53 and 6,343.43 is: 9,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.14 : 28,230.53 = 6,343.43 : x
  2. Step 2: Convert to fraction form
    18,832.14/28,230.53 = 6,343.43/x
  3. Step 3: Cross multiply
    18,832.14x = 28,230.53 × 6,343.43
  4. Step 4: Simplify right side
    18,832.14x = 179,078,218.05
  5. Step 5: Solve for x
    x = 179,078,218.05/18,832.14
  6. Step 6: Final answer
    x = 9,509.18

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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.