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Finding the Fourth Proportional to 2,134.62, 3,201.62 and 673.58

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Solution

The fourth proportional to 2,134.62, 3,201.62 and 673.58 is: 1,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.62 : 3,201.62 = 673.58 : x
  2. Step 2: Convert to fraction form
    2,134.62/3,201.62 = 673.58/x
  3. Step 3: Cross multiply
    2,134.62x = 3,201.62 × 673.58
  4. Step 4: Simplify right side
    2,134.62x = 2,156,547.20
  5. Step 5: Solve for x
    x = 2,156,547.20/2,134.62
  6. Step 6: Final answer
    x = 1,010.27

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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.