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Finding the Fourth Proportional to 100,617.92, 150,926.80 and 25,738.20

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Solution

The fourth proportional to 100,617.92, 150,926.80 and 25,738.20 is: 38,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,617.92 : 150,926.80 = 25,738.20 : x
  2. Step 2: Convert to fraction form
    100,617.92/150,926.80 = 25,738.20/x
  3. Step 3: Cross multiply
    100,617.92x = 150,926.80 × 25,738.20
  4. Step 4: Simplify right side
    100,617.92x = 3,884,584,163.76
  5. Step 5: Solve for x
    x = 3,884,584,163.76/100,617.92
  6. Step 6: Final answer
    x = 38,607.28

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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.