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Finding the Fourth Proportional to 18,063.74, 27,092.88 and 4,917.14

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Solution

The fourth proportional to 18,063.74, 27,092.88 and 4,917.14 is: 7,374.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,063.74 : 27,092.88 = 4,917.14 : x
  2. Step 2: Convert to fraction form
    18,063.74/27,092.88 = 4,917.14/x
  3. Step 3: Cross multiply
    18,063.74x = 27,092.88 × 4,917.14
  4. Step 4: Simplify right side
    18,063.74x = 133,219,450.10
  5. Step 5: Solve for x
    x = 133,219,450.10/18,063.74
  6. Step 6: Final answer
    x = 7,374.96

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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.