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Finding the Fourth Proportional to 4,958.55, 7,430.22 and 3,393

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Solution

The fourth proportional to 4,958.55, 7,430.22 and 3,393 is: 5,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,958.55 : 7,430.22 = 3,393 : x
  2. Step 2: Convert to fraction form
    4,958.55/7,430.22 = 3,393/x
  3. Step 3: Cross multiply
    4,958.55x = 7,430.22 × 3,393
  4. Step 4: Simplify right side
    4,958.55x = 25,210,736.46
  5. Step 5: Solve for x
    x = 25,210,736.46/4,958.55
  6. Step 6: Final answer
    x = 5,084.30

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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.