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Finding the Fourth Proportional to 6,992.57, 10,479.63 and 3,704.78

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Solution

The fourth proportional to 6,992.57, 10,479.63 and 3,704.78 is: 5,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.57 : 10,479.63 = 3,704.78 : x
  2. Step 2: Convert to fraction form
    6,992.57/10,479.63 = 3,704.78/x
  3. Step 3: Cross multiply
    6,992.57x = 10,479.63 × 3,704.78
  4. Step 4: Simplify right side
    6,992.57x = 38,824,723.63
  5. Step 5: Solve for x
    x = 38,824,723.63/6,992.57
  6. Step 6: Final answer
    x = 5,552.28

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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.