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Finding the Fourth Proportional to 18,146.73, 27,213.06 and 7,051.96

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Solution

The fourth proportional to 18,146.73, 27,213.06 and 7,051.96 is: 10,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.73 : 27,213.06 = 7,051.96 : x
  2. Step 2: Convert to fraction form
    18,146.73/27,213.06 = 7,051.96/x
  3. Step 3: Cross multiply
    18,146.73x = 27,213.06 × 7,051.96
  4. Step 4: Simplify right side
    18,146.73x = 191,905,410.60
  5. Step 5: Solve for x
    x = 191,905,410.60/18,146.73
  6. Step 6: Final answer
    x = 10,575.21

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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.