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Finding the Fourth Proportional to 3,671.04, 5,066.64 and 2,491.32

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Solution

The fourth proportional to 3,671.04, 5,066.64 and 2,491.32 is: 3,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.04 : 5,066.64 = 2,491.32 : x
  2. Step 2: Convert to fraction form
    3,671.04/5,066.64 = 2,491.32/x
  3. Step 3: Cross multiply
    3,671.04x = 5,066.64 × 2,491.32
  4. Step 4: Simplify right side
    3,671.04x = 12,622,621.56
  5. Step 5: Solve for x
    x = 12,622,621.56/3,671.04
  6. Step 6: Final answer
    x = 3,438.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.