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Finding the Fourth Proportional to 7,328.32, 10,984.24 and 2,940.68

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Solution

The fourth proportional to 7,328.32, 10,984.24 and 2,940.68 is: 4,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.32 : 10,984.24 = 2,940.68 : x
  2. Step 2: Convert to fraction form
    7,328.32/10,984.24 = 2,940.68/x
  3. Step 3: Cross multiply
    7,328.32x = 10,984.24 × 2,940.68
  4. Step 4: Simplify right side
    7,328.32x = 32,301,134.88
  5. Step 5: Solve for x
    x = 32,301,134.88/7,328.32
  6. Step 6: Final answer
    x = 4,407.71

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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.