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Finding the Fourth Proportional to 5,338.11, 7,368.15 and 3,100.99

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Solution

The fourth proportional to 5,338.11, 7,368.15 and 3,100.99 is: 4,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.11 : 7,368.15 = 3,100.99 : x
  2. Step 2: Convert to fraction form
    5,338.11/7,368.15 = 3,100.99/x
  3. Step 3: Cross multiply
    5,338.11x = 7,368.15 × 3,100.99
  4. Step 4: Simplify right side
    5,338.11x = 22,848,559.47
  5. Step 5: Solve for x
    x = 22,848,559.47/5,338.11
  6. Step 6: Final answer
    x = 4,280.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.