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Finding the Fourth Proportional to 3,973.64, 5,483.94 and 2,205.82

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Solution

The fourth proportional to 3,973.64, 5,483.94 and 2,205.82 is: 3,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.64 : 5,483.94 = 2,205.82 : x
  2. Step 2: Convert to fraction form
    3,973.64/5,483.94 = 2,205.82/x
  3. Step 3: Cross multiply
    3,973.64x = 5,483.94 × 2,205.82
  4. Step 4: Simplify right side
    3,973.64x = 12,096,584.53
  5. Step 5: Solve for x
    x = 12,096,584.53/3,973.64
  6. Step 6: Final answer
    x = 3,044.21

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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.