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Finding the Fourth Proportional to 11,760.68, 17,641.56 and 3,969.56

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Solution

The fourth proportional to 11,760.68, 17,641.56 and 3,969.56 is: 5,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.68 : 17,641.56 = 3,969.56 : x
  2. Step 2: Convert to fraction form
    11,760.68/17,641.56 = 3,969.56/x
  3. Step 3: Cross multiply
    11,760.68x = 17,641.56 × 3,969.56
  4. Step 4: Simplify right side
    11,760.68x = 70,029,230.91
  5. Step 5: Solve for x
    x = 70,029,230.91/11,760.68
  6. Step 6: Final answer
    x = 5,954.52

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1.5x scale

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.