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Finding the Fourth Proportional to 14,122.82, 19,481.39 and 8,808.41

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Solution

The fourth proportional to 14,122.82, 19,481.39 and 8,808.41 is: 12,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.82 : 19,481.39 = 8,808.41 : x
  2. Step 2: Convert to fraction form
    14,122.82/19,481.39 = 8,808.41/x
  3. Step 3: Cross multiply
    14,122.82x = 19,481.39 × 8,808.41
  4. Step 4: Simplify right side
    14,122.82x = 171,600,070.49
  5. Step 5: Solve for x
    x = 171,600,070.49/14,122.82
  6. Step 6: Final answer
    x = 12,150.55

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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.