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Finding the Fourth Proportional to 3,607.59, 5,408.18 and 1,266

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Solution

The fourth proportional to 3,607.59, 5,408.18 and 1,266 is: 1,897.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.59 : 5,408.18 = 1,266 : x
  2. Step 2: Convert to fraction form
    3,607.59/5,408.18 = 1,266/x
  3. Step 3: Cross multiply
    3,607.59x = 5,408.18 × 1,266
  4. Step 4: Simplify right side
    3,607.59x = 6,846,755.88
  5. Step 5: Solve for x
    x = 6,846,755.88/3,607.59
  6. Step 6: Final answer
    x = 1,897.88

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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.