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Finding the Fourth Proportional to 5,845.72, 8,765.70 and 4,872.28

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Solution

The fourth proportional to 5,845.72, 8,765.70 and 4,872.28 is: 7,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,845.72 : 8,765.70 = 4,872.28 : x
  2. Step 2: Convert to fraction form
    5,845.72/8,765.70 = 4,872.28/x
  3. Step 3: Cross multiply
    5,845.72x = 8,765.70 × 4,872.28
  4. Step 4: Simplify right side
    5,845.72x = 42,708,944.80
  5. Step 5: Solve for x
    x = 42,708,944.80/5,845.72
  6. Step 6: Final answer
    x = 7,306.02

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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.