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Finding the Fourth Proportional to 14,150.74, 21,228.78 and 6,755.74

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Solution

The fourth proportional to 14,150.74, 21,228.78 and 6,755.74 is: 10,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,150.74 : 21,228.78 = 6,755.74 : x
  2. Step 2: Convert to fraction form
    14,150.74/21,228.78 = 6,755.74/x
  3. Step 3: Cross multiply
    14,150.74x = 21,228.78 × 6,755.74
  4. Step 4: Simplify right side
    14,150.74x = 143,416,118.20
  5. Step 5: Solve for x
    x = 143,416,118.20/14,150.74
  6. Step 6: Final answer
    x = 10,134.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.