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Finding the Fourth Proportional to 3,631.76, 5,447.02 and 1,410.26

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Solution

The fourth proportional to 3,631.76, 5,447.02 and 1,410.26 is: 2,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.76 : 5,447.02 = 1,410.26 : x
  2. Step 2: Convert to fraction form
    3,631.76/5,447.02 = 1,410.26/x
  3. Step 3: Cross multiply
    3,631.76x = 5,447.02 × 1,410.26
  4. Step 4: Simplify right side
    3,631.76x = 7,681,714.43
  5. Step 5: Solve for x
    x = 7,681,714.43/3,631.76
  6. Step 6: Final answer
    x = 2,115.15

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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.