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Finding the Fourth Proportional to 4,789.68, 7,185.04 and 2,193.36

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Solution

The fourth proportional to 4,789.68, 7,185.04 and 2,193.36 is: 3,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.68 : 7,185.04 = 2,193.36 : x
  2. Step 2: Convert to fraction form
    4,789.68/7,185.04 = 2,193.36/x
  3. Step 3: Cross multiply
    4,789.68x = 7,185.04 × 2,193.36
  4. Step 4: Simplify right side
    4,789.68x = 15,759,379.33
  5. Step 5: Solve for x
    x = 15,759,379.33/4,789.68
  6. Step 6: Final answer
    x = 3,290.28

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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.