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Finding the Fourth Proportional to 3,467.84, 5,201 and 1,128.04

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Solution

The fourth proportional to 3,467.84, 5,201 and 1,128.04 is: 1,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.84 : 5,201 = 1,128.04 : x
  2. Step 2: Convert to fraction form
    3,467.84/5,201 = 1,128.04/x
  3. Step 3: Cross multiply
    3,467.84x = 5,201 × 1,128.04
  4. Step 4: Simplify right side
    3,467.84x = 5,866,936.04
  5. Step 5: Solve for x
    x = 5,866,936.04/3,467.84
  6. Step 6: Final answer
    x = 1,691.81

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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.