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Finding the Fourth Proportional to 3,579.53, 5,368.64 and 982.44

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Solution

The fourth proportional to 3,579.53, 5,368.64 and 982.44 is: 1,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.53 : 5,368.64 = 982.44 : x
  2. Step 2: Convert to fraction form
    3,579.53/5,368.64 = 982.44/x
  3. Step 3: Cross multiply
    3,579.53x = 5,368.64 × 982.44
  4. Step 4: Simplify right side
    3,579.53x = 5,274,361.77
  5. Step 5: Solve for x
    x = 5,274,361.77/3,579.53
  6. Step 6: Final answer
    x = 1,473.48

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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.