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Finding the Fourth Proportional to 18,405.29, 27,604.06 and 5,926.43

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Solution

The fourth proportional to 18,405.29, 27,604.06 and 5,926.43 is: 8,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.29 : 27,604.06 = 5,926.43 : x
  2. Step 2: Convert to fraction form
    18,405.29/27,604.06 = 5,926.43/x
  3. Step 3: Cross multiply
    18,405.29x = 27,604.06 × 5,926.43
  4. Step 4: Simplify right side
    18,405.29x = 163,593,529.31
  5. Step 5: Solve for x
    x = 163,593,529.31/18,405.29
  6. Step 6: Final answer
    x = 8,888.40

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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.