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Finding the Fourth Proportional to 3,969.01, 5,953.92 and 1,047.34

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Solution

The fourth proportional to 3,969.01, 5,953.92 and 1,047.34 is: 1,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.01 : 5,953.92 = 1,047.34 : x
  2. Step 2: Convert to fraction form
    3,969.01/5,953.92 = 1,047.34/x
  3. Step 3: Cross multiply
    3,969.01x = 5,953.92 × 1,047.34
  4. Step 4: Simplify right side
    3,969.01x = 6,235,778.57
  5. Step 5: Solve for x
    x = 6,235,778.57/3,969.01
  6. Step 6: Final answer
    x = 1,571.12

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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.