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Finding the Fourth Proportional to 4,799.39, 7,197.03 and 1,678.47

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Solution

The fourth proportional to 4,799.39, 7,197.03 and 1,678.47 is: 2,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.39 : 7,197.03 = 1,678.47 : x
  2. Step 2: Convert to fraction form
    4,799.39/7,197.03 = 1,678.47/x
  3. Step 3: Cross multiply
    4,799.39x = 7,197.03 × 1,678.47
  4. Step 4: Simplify right side
    4,799.39x = 12,079,998.94
  5. Step 5: Solve for x
    x = 12,079,998.94/4,799.39
  6. Step 6: Final answer
    x = 2,516.99

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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.