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Finding the Fourth Proportional to 43,082.94, 64,629.04 and 18,125.53

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Solution

The fourth proportional to 43,082.94, 64,629.04 and 18,125.53 is: 27,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,082.94 : 64,629.04 = 18,125.53 : x
  2. Step 2: Convert to fraction form
    43,082.94/64,629.04 = 18,125.53/x
  3. Step 3: Cross multiply
    43,082.94x = 64,629.04 × 18,125.53
  4. Step 4: Simplify right side
    43,082.94x = 1,171,435,603.39
  5. Step 5: Solve for x
    x = 1,171,435,603.39/43,082.94
  6. Step 6: Final answer
    x = 27,190.24

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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.