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Finding the Fourth Proportional to 3,728.28, 5,592.36 and 1,676.28

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Solution

The fourth proportional to 3,728.28, 5,592.36 and 1,676.28 is: 2,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.28 : 5,592.36 = 1,676.28 : x
  2. Step 2: Convert to fraction form
    3,728.28/5,592.36 = 1,676.28/x
  3. Step 3: Cross multiply
    3,728.28x = 5,592.36 × 1,676.28
  4. Step 4: Simplify right side
    3,728.28x = 9,374,361.22
  5. Step 5: Solve for x
    x = 9,374,361.22/3,728.28
  6. Step 6: Final answer
    x = 2,514.39

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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.