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Finding the Fourth Proportional to 5,599.05, 7,713.41 and 3,917.49

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Solution

The fourth proportional to 5,599.05, 7,713.41 and 3,917.49 is: 5,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.05 : 7,713.41 = 3,917.49 : x
  2. Step 2: Convert to fraction form
    5,599.05/7,713.41 = 3,917.49/x
  3. Step 3: Cross multiply
    5,599.05x = 7,713.41 × 3,917.49
  4. Step 4: Simplify right side
    5,599.05x = 30,217,167.97
  5. Step 5: Solve for x
    x = 30,217,167.97/5,599.05
  6. Step 6: Final answer
    x = 5,396.84

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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.