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Finding the Fourth Proportional to 18,153.06, 27,212.58 and 7,066.86

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Solution

The fourth proportional to 18,153.06, 27,212.58 and 7,066.86 is: 10,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.06 : 27,212.58 = 7,066.86 : x
  2. Step 2: Convert to fraction form
    18,153.06/27,212.58 = 7,066.86/x
  3. Step 3: Cross multiply
    18,153.06x = 27,212.58 × 7,066.86
  4. Step 4: Simplify right side
    18,153.06x = 192,307,493.10
  5. Step 5: Solve for x
    x = 192,307,493.10/18,153.06
  6. Step 6: Final answer
    x = 10,593.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.