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Finding the Fourth Proportional to 5,617.26, 8,419.06 and 3,974.28

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Solution

The fourth proportional to 5,617.26, 8,419.06 and 3,974.28 is: 5,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.26 : 8,419.06 = 3,974.28 : x
  2. Step 2: Convert to fraction form
    5,617.26/8,419.06 = 3,974.28/x
  3. Step 3: Cross multiply
    5,617.26x = 8,419.06 × 3,974.28
  4. Step 4: Simplify right side
    5,617.26x = 33,459,691.84
  5. Step 5: Solve for x
    x = 33,459,691.84/5,617.26
  6. Step 6: Final answer
    x = 5,956.59

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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.