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Finding the Fourth Proportional to 4,799.70, 7,200.90 and 2,027.70

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Solution

The fourth proportional to 4,799.70, 7,200.90 and 2,027.70 is: 3,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.70 : 7,200.90 = 2,027.70 : x
  2. Step 2: Convert to fraction form
    4,799.70/7,200.90 = 2,027.70/x
  3. Step 3: Cross multiply
    4,799.70x = 7,200.90 × 2,027.70
  4. Step 4: Simplify right side
    4,799.70x = 14,601,264.93
  5. Step 5: Solve for x
    x = 14,601,264.93/4,799.70
  6. Step 6: Final answer
    x = 3,042.12

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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.