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Finding the Fourth Proportional to 16,257.39, 22,435.17 and 8,805.39

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Solution

The fourth proportional to 16,257.39, 22,435.17 and 8,805.39 is: 12,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,257.39 : 22,435.17 = 8,805.39 : x
  2. Step 2: Convert to fraction form
    16,257.39/22,435.17 = 8,805.39/x
  3. Step 3: Cross multiply
    16,257.39x = 22,435.17 × 8,805.39
  4. Step 4: Simplify right side
    16,257.39x = 197,550,421.57
  5. Step 5: Solve for x
    x = 197,550,421.57/16,257.39
  6. Step 6: Final answer
    x = 12,151.42

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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.