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Finding the Fourth Proportional to 7,290.96, 10,928.21 and 2,903.33

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Solution

The fourth proportional to 7,290.96, 10,928.21 and 2,903.33 is: 4,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.96 : 10,928.21 = 2,903.33 : x
  2. Step 2: Convert to fraction form
    7,290.96/10,928.21 = 2,903.33/x
  3. Step 3: Cross multiply
    7,290.96x = 10,928.21 × 2,903.33
  4. Step 4: Simplify right side
    7,290.96x = 31,728,130.78
  5. Step 5: Solve for x
    x = 31,728,130.78/7,290.96
  6. Step 6: Final answer
    x = 4,351.71

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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.