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Finding the Fourth Proportional to 45,651.20, 68,433.60 and 26,945.60

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Solution

The fourth proportional to 45,651.20, 68,433.60 and 26,945.60 is: 40,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,651.20 : 68,433.60 = 26,945.60 : x
  2. Step 2: Convert to fraction form
    45,651.20/68,433.60 = 26,945.60/x
  3. Step 3: Cross multiply
    45,651.20x = 68,433.60 × 26,945.60
  4. Step 4: Simplify right side
    45,651.20x = 1,843,984,412.16
  5. Step 5: Solve for x
    x = 1,843,984,412.16/45,651.20
  6. Step 6: Final answer
    x = 40,392.90

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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.