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Finding the Fourth Proportional to 12,262.66, 16,917.92 and 7,480.96

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Solution

The fourth proportional to 12,262.66, 16,917.92 and 7,480.96 is: 10,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.66 : 16,917.92 = 7,480.96 : x
  2. Step 2: Convert to fraction form
    12,262.66/16,917.92 = 7,480.96/x
  3. Step 3: Cross multiply
    12,262.66x = 16,917.92 × 7,480.96
  4. Step 4: Simplify right side
    12,262.66x = 126,562,245.40
  5. Step 5: Solve for x
    x = 126,562,245.40/12,262.66
  6. Step 6: Final answer
    x = 10,320.95

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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.