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Finding the Fourth Proportional to 11,759.61, 17,640.96 and 6,213.17

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Solution

The fourth proportional to 11,759.61, 17,640.96 and 6,213.17 is: 9,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,759.61 : 17,640.96 = 6,213.17 : x
  2. Step 2: Convert to fraction form
    11,759.61/17,640.96 = 6,213.17/x
  3. Step 3: Cross multiply
    11,759.61x = 17,640.96 × 6,213.17
  4. Step 4: Simplify right side
    11,759.61x = 109,606,282.25
  5. Step 5: Solve for x
    x = 109,606,282.25/11,759.61
  6. Step 6: Final answer
    x = 9,320.57

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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.