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Finding the Fourth Proportional to 7,182.18, 10,775.12 and 2,800.89

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Solution

The fourth proportional to 7,182.18, 10,775.12 and 2,800.89 is: 4,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.18 : 10,775.12 = 2,800.89 : x
  2. Step 2: Convert to fraction form
    7,182.18/10,775.12 = 2,800.89/x
  3. Step 3: Cross multiply
    7,182.18x = 10,775.12 × 2,800.89
  4. Step 4: Simplify right side
    7,182.18x = 30,179,911.85
  5. Step 5: Solve for x
    x = 30,179,911.85/7,182.18
  6. Step 6: Final answer
    x = 4,202.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.