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Finding the Fourth Proportional to 12,080.74, 16,671.20 and 6,775.54

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Solution

The fourth proportional to 12,080.74, 16,671.20 and 6,775.54 is: 9,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.74 : 16,671.20 = 6,775.54 : x
  2. Step 2: Convert to fraction form
    12,080.74/16,671.20 = 6,775.54/x
  3. Step 3: Cross multiply
    12,080.74x = 16,671.20 × 6,775.54
  4. Step 4: Simplify right side
    12,080.74x = 112,956,382.45
  5. Step 5: Solve for x
    x = 112,956,382.45/12,080.74
  6. Step 6: Final answer
    x = 9,350.12

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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.