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Finding the Fourth Proportional to 18,492.42, 27,742.62 and 5,343.68

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Solution

The fourth proportional to 18,492.42, 27,742.62 and 5,343.68 is: 8,016.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.42 : 27,742.62 = 5,343.68 : x
  2. Step 2: Convert to fraction form
    18,492.42/27,742.62 = 5,343.68/x
  3. Step 3: Cross multiply
    18,492.42x = 27,742.62 × 5,343.68
  4. Step 4: Simplify right side
    18,492.42x = 148,247,683.64
  5. Step 5: Solve for x
    x = 148,247,683.64/18,492.42
  6. Step 6: Final answer
    x = 8,016.67

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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.