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Finding the Fourth Proportional to 7,322.70, 10,992.15 and 4,042.20

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Solution

The fourth proportional to 7,322.70, 10,992.15 and 4,042.20 is: 6,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.70 : 10,992.15 = 4,042.20 : x
  2. Step 2: Convert to fraction form
    7,322.70/10,992.15 = 4,042.20/x
  3. Step 3: Cross multiply
    7,322.70x = 10,992.15 × 4,042.20
  4. Step 4: Simplify right side
    7,322.70x = 44,432,468.73
  5. Step 5: Solve for x
    x = 44,432,468.73/7,322.70
  6. Step 6: Final answer
    x = 6,067.77

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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.