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Finding the Fourth Proportional to 4,794.49, 7,191.42 and 2,945.89

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Solution

The fourth proportional to 4,794.49, 7,191.42 and 2,945.89 is: 4,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,794.49 : 7,191.42 = 2,945.89 : x
  2. Step 2: Convert to fraction form
    4,794.49/7,191.42 = 2,945.89/x
  3. Step 3: Cross multiply
    4,794.49x = 7,191.42 × 2,945.89
  4. Step 4: Simplify right side
    4,794.49x = 21,185,132.26
  5. Step 5: Solve for x
    x = 21,185,132.26/4,794.49
  6. Step 6: Final answer
    x = 4,418.64

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1.5x scale

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.