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Finding the Fourth Proportional to 12,037.74, 16,612.21 and 6,659.90

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Solution

The fourth proportional to 12,037.74, 16,612.21 and 6,659.90 is: 9,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,037.74 : 16,612.21 = 6,659.90 : x
  2. Step 2: Convert to fraction form
    12,037.74/16,612.21 = 6,659.90/x
  3. Step 3: Cross multiply
    12,037.74x = 16,612.21 × 6,659.90
  4. Step 4: Simplify right side
    12,037.74x = 110,635,624.08
  5. Step 5: Solve for x
    x = 110,635,624.08/12,037.74
  6. Step 6: Final answer
    x = 9,190.73

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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.