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Finding the Fourth Proportional to 7,326.91, 10,992.19 and 2,884.87

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Solution

The fourth proportional to 7,326.91, 10,992.19 and 2,884.87 is: 4,328.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.91 : 10,992.19 = 2,884.87 : x
  2. Step 2: Convert to fraction form
    7,326.91/10,992.19 = 2,884.87/x
  3. Step 3: Cross multiply
    7,326.91x = 10,992.19 × 2,884.87
  4. Step 4: Simplify right side
    7,326.91x = 31,711,039.17
  5. Step 5: Solve for x
    x = 31,711,039.17/7,326.91
  6. Step 6: Final answer
    x = 4,328.02

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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.