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Finding the Fourth Proportional to 11,659.70, 17,490.09 and 3,340.94

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Solution

The fourth proportional to 11,659.70, 17,490.09 and 3,340.94 is: 5,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.70 : 17,490.09 = 3,340.94 : x
  2. Step 2: Convert to fraction form
    11,659.70/17,490.09 = 3,340.94/x
  3. Step 3: Cross multiply
    11,659.70x = 17,490.09 × 3,340.94
  4. Step 4: Simplify right side
    11,659.70x = 58,433,253.83
  5. Step 5: Solve for x
    x = 58,433,253.83/11,659.70
  6. Step 6: Final answer
    x = 5,011.56

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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.