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Finding the Fourth Proportional to 3,663.21, 5,494.10 and 994.82

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Solution

The fourth proportional to 3,663.21, 5,494.10 and 994.82 is: 1,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.21 : 5,494.10 = 994.82 : x
  2. Step 2: Convert to fraction form
    3,663.21/5,494.10 = 994.82/x
  3. Step 3: Cross multiply
    3,663.21x = 5,494.10 × 994.82
  4. Step 4: Simplify right side
    3,663.21x = 5,465,608.12
  5. Step 5: Solve for x
    x = 5,465,608.12/3,663.21
  6. Step 6: Final answer
    x = 1,492.03

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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.