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Finding the Fourth Proportional to 19,227.16, 28,842.79 and 8,134.97

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Solution

The fourth proportional to 19,227.16, 28,842.79 and 8,134.97 is: 12,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,227.16 : 28,842.79 = 8,134.97 : x
  2. Step 2: Convert to fraction form
    19,227.16/28,842.79 = 8,134.97/x
  3. Step 3: Cross multiply
    19,227.16x = 28,842.79 × 8,134.97
  4. Step 4: Simplify right side
    19,227.16x = 234,635,087.15
  5. Step 5: Solve for x
    x = 234,635,087.15/19,227.16
  6. Step 6: Final answer
    x = 12,203.32

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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.