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Finding the Fourth Proportional to 3,523.68, 5,289.12 and 1,769.94

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Solution

The fourth proportional to 3,523.68, 5,289.12 and 1,769.94 is: 2,656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,523.68 : 5,289.12 = 1,769.94 : x
  2. Step 2: Convert to fraction form
    3,523.68/5,289.12 = 1,769.94/x
  3. Step 3: Cross multiply
    3,523.68x = 5,289.12 × 1,769.94
  4. Step 4: Simplify right side
    3,523.68x = 9,361,425.05
  5. Step 5: Solve for x
    x = 9,361,425.05/3,523.68
  6. Step 6: Final answer
    x = 2,656.72

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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.