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Finding the Fourth Proportional to 6,984.54, 10,476.87 and 1,790.46

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Solution

The fourth proportional to 6,984.54, 10,476.87 and 1,790.46 is: 2,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.54 : 10,476.87 = 1,790.46 : x
  2. Step 2: Convert to fraction form
    6,984.54/10,476.87 = 1,790.46/x
  3. Step 3: Cross multiply
    6,984.54x = 10,476.87 × 1,790.46
  4. Step 4: Simplify right side
    6,984.54x = 18,758,416.66
  5. Step 5: Solve for x
    x = 18,758,416.66/6,984.54
  6. Step 6: Final answer
    x = 2,685.71

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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.