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Finding the Fourth Proportional to 6,799.91, 10,200.99 and 2,118.82

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Solution

The fourth proportional to 6,799.91, 10,200.99 and 2,118.82 is: 3,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,799.91 : 10,200.99 = 2,118.82 : x
  2. Step 2: Convert to fraction form
    6,799.91/10,200.99 = 2,118.82/x
  3. Step 3: Cross multiply
    6,799.91x = 10,200.99 × 2,118.82
  4. Step 4: Simplify right side
    6,799.91x = 21,614,010.63
  5. Step 5: Solve for x
    x = 21,614,010.63/6,799.91
  6. Step 6: Final answer
    x = 3,178.57

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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.