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Finding the Fourth Proportional to 60,896.20, 91,311.90 and 25,796.20

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Solution

The fourth proportional to 60,896.20, 91,311.90 and 25,796.20 is: 38,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,896.20 : 91,311.90 = 25,796.20 : x
  2. Step 2: Convert to fraction form
    60,896.20/91,311.90 = 25,796.20/x
  3. Step 3: Cross multiply
    60,896.20x = 91,311.90 × 25,796.20
  4. Step 4: Simplify right side
    60,896.20x = 2,355,500,034.78
  5. Step 5: Solve for x
    x = 2,355,500,034.78/60,896.20
  6. Step 6: Final answer
    x = 38,680.58

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1.5x scale

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.