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Finding the Fourth Proportional to 18,476.84, 27,723.36 and 6,793.40

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Solution

The fourth proportional to 18,476.84, 27,723.36 and 6,793.40 is: 10,193.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.84 : 27,723.36 = 6,793.40 : x
  2. Step 2: Convert to fraction form
    18,476.84/27,723.36 = 6,793.40/x
  3. Step 3: Cross multiply
    18,476.84x = 27,723.36 × 6,793.40
  4. Step 4: Simplify right side
    18,476.84x = 188,335,873.82
  5. Step 5: Solve for x
    x = 188,335,873.82/18,476.84
  6. Step 6: Final answer
    x = 10,193.08

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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.