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Finding the Fourth Proportional to 18,634.46, 27,951.72 and 4,783.46

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Solution

The fourth proportional to 18,634.46, 27,951.72 and 4,783.46 is: 7,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.46 : 27,951.72 = 4,783.46 : x
  2. Step 2: Convert to fraction form
    18,634.46/27,951.72 = 4,783.46/x
  3. Step 3: Cross multiply
    18,634.46x = 27,951.72 × 4,783.46
  4. Step 4: Simplify right side
    18,634.46x = 133,705,934.55
  5. Step 5: Solve for x
    x = 133,705,934.55/18,634.46
  6. Step 6: Final answer
    x = 7,175.20

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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.