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Finding the Fourth Proportional to 4,679.44, 7,012.88 and 1,754.80

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Solution

The fourth proportional to 4,679.44, 7,012.88 and 1,754.80 is: 2,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.44 : 7,012.88 = 1,754.80 : x
  2. Step 2: Convert to fraction form
    4,679.44/7,012.88 = 1,754.80/x
  3. Step 3: Cross multiply
    4,679.44x = 7,012.88 × 1,754.80
  4. Step 4: Simplify right side
    4,679.44x = 12,306,201.82
  5. Step 5: Solve for x
    x = 12,306,201.82/4,679.44
  6. Step 6: Final answer
    x = 2,629.84

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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.