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Finding the Fourth Proportional to 28,182, 38,891.08 and 16,245.24

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Solution

The fourth proportional to 28,182, 38,891.08 and 16,245.24 is: 22,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182 : 38,891.08 = 16,245.24 : x
  2. Step 2: Convert to fraction form
    28,182/38,891.08 = 16,245.24/x
  3. Step 3: Cross multiply
    28,182x = 38,891.08 × 16,245.24
  4. Step 4: Simplify right side
    28,182x = 631,794,928.46
  5. Step 5: Solve for x
    x = 631,794,928.46/28,182
  6. Step 6: Final answer
    x = 22,418.39

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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.