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Finding the Fourth Proportional to 4,797.80, 7,201.20 and 2,459.54

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Solution

The fourth proportional to 4,797.80, 7,201.20 and 2,459.54 is: 3,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797.80 : 7,201.20 = 2,459.54 : x
  2. Step 2: Convert to fraction form
    4,797.80/7,201.20 = 2,459.54/x
  3. Step 3: Cross multiply
    4,797.80x = 7,201.20 × 2,459.54
  4. Step 4: Simplify right side
    4,797.80x = 17,711,639.45
  5. Step 5: Solve for x
    x = 17,711,639.45/4,797.80
  6. Step 6: Final answer
    x = 3,691.62

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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.