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Finding the Fourth Proportional to 2,724.80, 3,760.12 and 1,482.80

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Solution

The fourth proportional to 2,724.80, 3,760.12 and 1,482.80 is: 2,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.80 : 3,760.12 = 1,482.80 : x
  2. Step 2: Convert to fraction form
    2,724.80/3,760.12 = 1,482.80/x
  3. Step 3: Cross multiply
    2,724.80x = 3,760.12 × 1,482.80
  4. Step 4: Simplify right side
    2,724.80x = 5,575,505.94
  5. Step 5: Solve for x
    x = 5,575,505.94/2,724.80
  6. Step 6: Final answer
    x = 2,046.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.