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Finding the Fourth Proportional to 4,799.79, 7,201.77 and 1,682.03

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Solution

The fourth proportional to 4,799.79, 7,201.77 and 1,682.03 is: 2,523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.79 : 7,201.77 = 1,682.03 : x
  2. Step 2: Convert to fraction form
    4,799.79/7,201.77 = 1,682.03/x
  3. Step 3: Cross multiply
    4,799.79x = 7,201.77 × 1,682.03
  4. Step 4: Simplify right side
    4,799.79x = 12,113,593.19
  5. Step 5: Solve for x
    x = 12,113,593.19/4,799.79
  6. Step 6: Final answer
    x = 2,523.78

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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.