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Finding the Fourth Proportional to 7,245.48, 10,868.90 and 2,247.90

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Solution

The fourth proportional to 7,245.48, 10,868.90 and 2,247.90 is: 3,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.48 : 10,868.90 = 2,247.90 : x
  2. Step 2: Convert to fraction form
    7,245.48/10,868.90 = 2,247.90/x
  3. Step 3: Cross multiply
    7,245.48x = 10,868.90 × 2,247.90
  4. Step 4: Simplify right side
    7,245.48x = 24,432,147.02
  5. Step 5: Solve for x
    x = 24,432,147.02/7,245.48
  6. Step 6: Final answer
    x = 3,372.05

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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.