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Finding the Fourth Proportional to 4,986.03, 7,480.80 and 2,796.60

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Solution

The fourth proportional to 4,986.03, 7,480.80 and 2,796.60 is: 4,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.03 : 7,480.80 = 2,796.60 : x
  2. Step 2: Convert to fraction form
    4,986.03/7,480.80 = 2,796.60/x
  3. Step 3: Cross multiply
    4,986.03x = 7,480.80 × 2,796.60
  4. Step 4: Simplify right side
    4,986.03x = 20,920,805.28
  5. Step 5: Solve for x
    x = 20,920,805.28/4,986.03
  6. Step 6: Final answer
    x = 4,195.88

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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.