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Finding the Fourth Proportional to 18,578.64, 25,529.46 and 14,846.16

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Solution

The fourth proportional to 18,578.64, 25,529.46 and 14,846.16 is: 20,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.64 : 25,529.46 = 14,846.16 : x
  2. Step 2: Convert to fraction form
    18,578.64/25,529.46 = 14,846.16/x
  3. Step 3: Cross multiply
    18,578.64x = 25,529.46 × 14,846.16
  4. Step 4: Simplify right side
    18,578.64x = 379,014,447.87
  5. Step 5: Solve for x
    x = 379,014,447.87/18,578.64
  6. Step 6: Final answer
    x = 20,400.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.