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Finding the Fourth Proportional to 28,162.98, 38,860.83 and 18,092.25

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Solution

The fourth proportional to 28,162.98, 38,860.83 and 18,092.25 is: 24,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.98 : 38,860.83 = 18,092.25 : x
  2. Step 2: Convert to fraction form
    28,162.98/38,860.83 = 18,092.25/x
  3. Step 3: Cross multiply
    28,162.98x = 38,860.83 × 18,092.25
  4. Step 4: Simplify right side
    28,162.98x = 703,079,851.57
  5. Step 5: Solve for x
    x = 703,079,851.57/28,162.98
  6. Step 6: Final answer
    x = 24,964.68

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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.