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Finding the Fourth Proportional to 18,754.89, 25,891.16 and 14,496.33

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Solution

The fourth proportional to 18,754.89, 25,891.16 and 14,496.33 is: 20,012.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.89 : 25,891.16 = 14,496.33 : x
  2. Step 2: Convert to fraction form
    18,754.89/25,891.16 = 14,496.33/x
  3. Step 3: Cross multiply
    18,754.89x = 25,891.16 × 14,496.33
  4. Step 4: Simplify right side
    18,754.89x = 375,326,824.05
  5. Step 5: Solve for x
    x = 375,326,824.05/18,754.89
  6. Step 6: Final answer
    x = 20,012.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.