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Finding the Fourth Proportional to 58,299.80, 80,439.90 and 33,163.16

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Solution

The fourth proportional to 58,299.80, 80,439.90 and 33,163.16 is: 45,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,299.80 : 80,439.90 = 33,163.16 : x
  2. Step 2: Convert to fraction form
    58,299.80/80,439.90 = 33,163.16/x
  3. Step 3: Cross multiply
    58,299.80x = 80,439.90 × 33,163.16
  4. Step 4: Simplify right side
    58,299.80x = 2,667,641,274.08
  5. Step 5: Solve for x
    x = 2,667,641,274.08/58,299.80
  6. Step 6: Final answer
    x = 45,757.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.