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Finding the Fourth Proportional to 3,796.28, 5,695.28 and 1,487.80

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Solution

The fourth proportional to 3,796.28, 5,695.28 and 1,487.80 is: 2,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.28 : 5,695.28 = 1,487.80 : x
  2. Step 2: Convert to fraction form
    3,796.28/5,695.28 = 1,487.80/x
  3. Step 3: Cross multiply
    3,796.28x = 5,695.28 × 1,487.80
  4. Step 4: Simplify right side
    3,796.28x = 8,473,437.58
  5. Step 5: Solve for x
    x = 8,473,437.58/3,796.28
  6. Step 6: Final answer
    x = 2,232.04

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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.