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Finding the Fourth Proportional to 100,512.60, 150,768.90 and 25,632.60

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Solution

The fourth proportional to 100,512.60, 150,768.90 and 25,632.60 is: 38,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,512.60 : 150,768.90 = 25,632.60 : x
  2. Step 2: Convert to fraction form
    100,512.60/150,768.90 = 25,632.60/x
  3. Step 3: Cross multiply
    100,512.60x = 150,768.90 × 25,632.60
  4. Step 4: Simplify right side
    100,512.60x = 3,864,598,906.14
  5. Step 5: Solve for x
    x = 3,864,598,906.14/100,512.60
  6. Step 6: Final answer
    x = 38,448.90

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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.