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Finding the Fourth Proportional to 18,926.62, 28,488.62 and 16,072.58

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Solution

The fourth proportional to 18,926.62, 28,488.62 and 16,072.58 is: 24,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.62 : 28,488.62 = 16,072.58 : x
  2. Step 2: Convert to fraction form
    18,926.62/28,488.62 = 16,072.58/x
  3. Step 3: Cross multiply
    18,926.62x = 28,488.62 × 16,072.58
  4. Step 4: Simplify right side
    18,926.62x = 457,885,735.44
  5. Step 5: Solve for x
    x = 457,885,735.44/18,926.62
  6. Step 6: Final answer
    x = 24,192.69

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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.