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Finding the Fourth Proportional to 18,841.46, 28,266.19 and 7,154.42

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Solution

The fourth proportional to 18,841.46, 28,266.19 and 7,154.42 is: 10,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.46 : 28,266.19 = 7,154.42 : x
  2. Step 2: Convert to fraction form
    18,841.46/28,266.19 = 7,154.42/x
  3. Step 3: Cross multiply
    18,841.46x = 28,266.19 × 7,154.42
  4. Step 4: Simplify right side
    18,841.46x = 202,228,195.06
  5. Step 5: Solve for x
    x = 202,228,195.06/18,841.46
  6. Step 6: Final answer
    x = 10,733.15

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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.