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Finding the Fourth Proportional to 23,989.69, 35,987.82 and 8,190.46

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Solution

The fourth proportional to 23,989.69, 35,987.82 and 8,190.46 is: 12,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,989.69 : 35,987.82 = 8,190.46 : x
  2. Step 2: Convert to fraction form
    23,989.69/35,987.82 = 8,190.46/x
  3. Step 3: Cross multiply
    23,989.69x = 35,987.82 × 8,190.46
  4. Step 4: Simplify right side
    23,989.69x = 294,756,800.20
  5. Step 5: Solve for x
    x = 294,756,800.20/23,989.69
  6. Step 6: Final answer
    x = 12,286.81

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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.