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Finding the Fourth Proportional to 10,694.70, 14,759.34 and 5,979.30

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Solution

The fourth proportional to 10,694.70, 14,759.34 and 5,979.30 is: 8,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,694.70 : 14,759.34 = 5,979.30 : x
  2. Step 2: Convert to fraction form
    10,694.70/14,759.34 = 5,979.30/x
  3. Step 3: Cross multiply
    10,694.70x = 14,759.34 × 5,979.30
  4. Step 4: Simplify right side
    10,694.70x = 88,250,521.66
  5. Step 5: Solve for x
    x = 88,250,521.66/10,694.70
  6. Step 6: Final answer
    x = 8,251.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.