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Finding the Fourth Proportional to 5,318.67, 7,977.93 and 2,394.90

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Solution

The fourth proportional to 5,318.67, 7,977.93 and 2,394.90 is: 3,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.67 : 7,977.93 = 2,394.90 : x
  2. Step 2: Convert to fraction form
    5,318.67/7,977.93 = 2,394.90/x
  3. Step 3: Cross multiply
    5,318.67x = 7,977.93 × 2,394.90
  4. Step 4: Simplify right side
    5,318.67x = 19,106,344.56
  5. Step 5: Solve for x
    x = 19,106,344.56/5,318.67
  6. Step 6: Final answer
    x = 3,592.32

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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.