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Finding the Fourth Proportional to 4,918.73, 7,372.50 and 1,954.43

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Solution

The fourth proportional to 4,918.73, 7,372.50 and 1,954.43 is: 2,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.73 : 7,372.50 = 1,954.43 : x
  2. Step 2: Convert to fraction form
    4,918.73/7,372.50 = 1,954.43/x
  3. Step 3: Cross multiply
    4,918.73x = 7,372.50 × 1,954.43
  4. Step 4: Simplify right side
    4,918.73x = 14,409,035.18
  5. Step 5: Solve for x
    x = 14,409,035.18/4,918.73
  6. Step 6: Final answer
    x = 2,929.42

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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.