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Finding the Fourth Proportional to 4,479.79, 6,711.99 and 3,494.56

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Solution

The fourth proportional to 4,479.79, 6,711.99 and 3,494.56 is: 5,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.79 : 6,711.99 = 3,494.56 : x
  2. Step 2: Convert to fraction form
    4,479.79/6,711.99 = 3,494.56/x
  3. Step 3: Cross multiply
    4,479.79x = 6,711.99 × 3,494.56
  4. Step 4: Simplify right side
    4,479.79x = 23,455,451.77
  5. Step 5: Solve for x
    x = 23,455,451.77/4,479.79
  6. Step 6: Final answer
    x = 5,235.84

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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.