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Finding the Fourth Proportional to 18,470.62, 27,705.20 and 7,373.98

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Solution

The fourth proportional to 18,470.62, 27,705.20 and 7,373.98 is: 11,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.62 : 27,705.20 = 7,373.98 : x
  2. Step 2: Convert to fraction form
    18,470.62/27,705.20 = 7,373.98/x
  3. Step 3: Cross multiply
    18,470.62x = 27,705.20 × 7,373.98
  4. Step 4: Simplify right side
    18,470.62x = 204,297,590.70
  5. Step 5: Solve for x
    x = 204,297,590.70/18,470.62
  6. Step 6: Final answer
    x = 11,060.68

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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.