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Finding the Fourth Proportional to 1,732.44, 2,600.06 and 911.20

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Solution

The fourth proportional to 1,732.44, 2,600.06 and 911.20 is: 1,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.44 : 2,600.06 = 911.20 : x
  2. Step 2: Convert to fraction form
    1,732.44/2,600.06 = 911.20/x
  3. Step 3: Cross multiply
    1,732.44x = 2,600.06 × 911.20
  4. Step 4: Simplify right side
    1,732.44x = 2,369,174.67
  5. Step 5: Solve for x
    x = 2,369,174.67/1,732.44
  6. Step 6: Final answer
    x = 1,367.54

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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.