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Finding the Fourth Proportional to 8,720.53, 13,082.02 and 2,796.03

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Solution

The fourth proportional to 8,720.53, 13,082.02 and 2,796.03 is: 4,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.53 : 13,082.02 = 2,796.03 : x
  2. Step 2: Convert to fraction form
    8,720.53/13,082.02 = 2,796.03/x
  3. Step 3: Cross multiply
    8,720.53x = 13,082.02 × 2,796.03
  4. Step 4: Simplify right side
    8,720.53x = 36,577,713.39
  5. Step 5: Solve for x
    x = 36,577,713.39/8,720.53
  6. Step 6: Final answer
    x = 4,194.44

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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.