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Finding the Fourth Proportional to 18,893.82, 28,453.18 and 16,458.06

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Solution

The fourth proportional to 18,893.82, 28,453.18 and 16,458.06 is: 24,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.82 : 28,453.18 = 16,458.06 : x
  2. Step 2: Convert to fraction form
    18,893.82/28,453.18 = 16,458.06/x
  3. Step 3: Cross multiply
    18,893.82x = 28,453.18 × 16,458.06
  4. Step 4: Simplify right side
    18,893.82x = 468,284,143.63
  5. Step 5: Solve for x
    x = 468,284,143.63/18,893.82
  6. Step 6: Final answer
    x = 24,785.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.