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Finding the Fourth Proportional to 7,836.69, 11,754.99 and 2,774.63

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Solution

The fourth proportional to 7,836.69, 11,754.99 and 2,774.63 is: 4,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.69 : 11,754.99 = 2,774.63 : x
  2. Step 2: Convert to fraction form
    7,836.69/11,754.99 = 2,774.63/x
  3. Step 3: Cross multiply
    7,836.69x = 11,754.99 × 2,774.63
  4. Step 4: Simplify right side
    7,836.69x = 32,615,785.09
  5. Step 5: Solve for x
    x = 32,615,785.09/7,836.69
  6. Step 6: Final answer
    x = 4,161.93

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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.