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Finding the Fourth Proportional to 5,940.16, 8,913.36 and 3,479.80

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Solution

The fourth proportional to 5,940.16, 8,913.36 and 3,479.80 is: 5,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.16 : 8,913.36 = 3,479.80 : x
  2. Step 2: Convert to fraction form
    5,940.16/8,913.36 = 3,479.80/x
  3. Step 3: Cross multiply
    5,940.16x = 8,913.36 × 3,479.80
  4. Step 4: Simplify right side
    5,940.16x = 31,016,710.13
  5. Step 5: Solve for x
    x = 31,016,710.13/5,940.16
  6. Step 6: Final answer
    x = 5,221.53

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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.