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Finding the Fourth Proportional to 2,910.85, 4,018.22 and 1,732.03

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Solution

The fourth proportional to 2,910.85, 4,018.22 and 1,732.03 is: 2,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.85 : 4,018.22 = 1,732.03 : x
  2. Step 2: Convert to fraction form
    2,910.85/4,018.22 = 1,732.03/x
  3. Step 3: Cross multiply
    2,910.85x = 4,018.22 × 1,732.03
  4. Step 4: Simplify right side
    2,910.85x = 6,959,668.93
  5. Step 5: Solve for x
    x = 6,959,668.93/2,910.85
  6. Step 6: Final answer
    x = 2,390.94

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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.