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Finding the Fourth Proportional to 18,479.61, 27,730.35 and 6,801.03

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Solution

The fourth proportional to 18,479.61, 27,730.35 and 6,801.03 is: 10,205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.61 : 27,730.35 = 6,801.03 : x
  2. Step 2: Convert to fraction form
    18,479.61/27,730.35 = 6,801.03/x
  3. Step 3: Cross multiply
    18,479.61x = 27,730.35 × 6,801.03
  4. Step 4: Simplify right side
    18,479.61x = 188,594,942.26
  5. Step 5: Solve for x
    x = 188,594,942.26/18,479.61
  6. Step 6: Final answer
    x = 10,205.57

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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.