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Finding the Fourth Proportional to 3,691.64, 5,538.28 and 1,094.42

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Solution

The fourth proportional to 3,691.64, 5,538.28 and 1,094.42 is: 1,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.64 : 5,538.28 = 1,094.42 : x
  2. Step 2: Convert to fraction form
    3,691.64/5,538.28 = 1,094.42/x
  3. Step 3: Cross multiply
    3,691.64x = 5,538.28 × 1,094.42
  4. Step 4: Simplify right side
    3,691.64x = 6,061,204.40
  5. Step 5: Solve for x
    x = 6,061,204.40/3,691.64
  6. Step 6: Final answer
    x = 1,641.87

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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.