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Finding the Fourth Proportional to 18,873, 28,310.04 and 5,022

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Solution

The fourth proportional to 18,873, 28,310.04 and 5,022 is: 7,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873 : 28,310.04 = 5,022 : x
  2. Step 2: Convert to fraction form
    18,873/28,310.04 = 5,022/x
  3. Step 3: Cross multiply
    18,873x = 28,310.04 × 5,022
  4. Step 4: Simplify right side
    18,873x = 142,173,020.88
  5. Step 5: Solve for x
    x = 142,173,020.88/18,873
  6. Step 6: Final answer
    x = 7,533.14

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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.