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Finding the Fourth Proportional to 5,207.88, 7,186.73 and 2,849.87

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Solution

The fourth proportional to 5,207.88, 7,186.73 and 2,849.87 is: 3,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.88 : 7,186.73 = 2,849.87 : x
  2. Step 2: Convert to fraction form
    5,207.88/7,186.73 = 2,849.87/x
  3. Step 3: Cross multiply
    5,207.88x = 7,186.73 × 2,849.87
  4. Step 4: Simplify right side
    5,207.88x = 20,481,246.23
  5. Step 5: Solve for x
    x = 20,481,246.23/5,207.88
  6. Step 6: Final answer
    x = 3,932.74

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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.