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Finding the Fourth Proportional to 7,176.69, 10,758.65 and 2,793.12

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Solution

The fourth proportional to 7,176.69, 10,758.65 and 2,793.12 is: 4,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.69 : 10,758.65 = 2,793.12 : x
  2. Step 2: Convert to fraction form
    7,176.69/10,758.65 = 2,793.12/x
  3. Step 3: Cross multiply
    7,176.69x = 10,758.65 × 2,793.12
  4. Step 4: Simplify right side
    7,176.69x = 30,050,200.49
  5. Step 5: Solve for x
    x = 30,050,200.49/7,176.69
  6. Step 6: Final answer
    x = 4,187.20

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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.