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Finding the Fourth Proportional to 2,984.34, 4,476.87 and 793.11

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Solution

The fourth proportional to 2,984.34, 4,476.87 and 793.11 is: 1,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.34 : 4,476.87 = 793.11 : x
  2. Step 2: Convert to fraction form
    2,984.34/4,476.87 = 793.11/x
  3. Step 3: Cross multiply
    2,984.34x = 4,476.87 × 793.11
  4. Step 4: Simplify right side
    2,984.34x = 3,550,650.37
  5. Step 5: Solve for x
    x = 3,550,650.37/2,984.34
  6. Step 6: Final answer
    x = 1,189.76

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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.