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Finding the Fourth Proportional to 18,828.27, 28,235.18 and 6,344.93

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Solution

The fourth proportional to 18,828.27, 28,235.18 and 6,344.93 is: 9,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.27 : 28,235.18 = 6,344.93 : x
  2. Step 2: Convert to fraction form
    18,828.27/28,235.18 = 6,344.93/x
  3. Step 3: Cross multiply
    18,828.27x = 28,235.18 × 6,344.93
  4. Step 4: Simplify right side
    18,828.27x = 179,150,327.09
  5. Step 5: Solve for x
    x = 179,150,327.09/18,828.27
  6. Step 6: Final answer
    x = 9,514.96

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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.