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Finding the Fourth Proportional to 5,940.74, 8,911.68 and 1,724.11

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Solution

The fourth proportional to 5,940.74, 8,911.68 and 1,724.11 is: 2,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.74 : 8,911.68 = 1,724.11 : x
  2. Step 2: Convert to fraction form
    5,940.74/8,911.68 = 1,724.11/x
  3. Step 3: Cross multiply
    5,940.74x = 8,911.68 × 1,724.11
  4. Step 4: Simplify right side
    5,940.74x = 15,364,687.86
  5. Step 5: Solve for x
    x = 15,364,687.86/5,940.74
  6. Step 6: Final answer
    x = 2,586.32

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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.