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Finding the Fourth Proportional to 23,908.40, 35,846.40 and 12,665.60

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Solution

The fourth proportional to 23,908.40, 35,846.40 and 12,665.60 is: 18,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,908.40 : 35,846.40 = 12,665.60 : x
  2. Step 2: Convert to fraction form
    23,908.40/35,846.40 = 12,665.60/x
  3. Step 3: Cross multiply
    23,908.40x = 35,846.40 × 12,665.60
  4. Step 4: Simplify right side
    23,908.40x = 454,016,163.84
  5. Step 5: Solve for x
    x = 454,016,163.84/23,908.40
  6. Step 6: Final answer
    x = 18,989.82

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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.