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Finding the Fourth Proportional to 22,435.74, 33,621.90 and 12,444.90

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Solution

The fourth proportional to 22,435.74, 33,621.90 and 12,444.90 is: 18,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,435.74 : 33,621.90 = 12,444.90 : x
  2. Step 2: Convert to fraction form
    22,435.74/33,621.90 = 12,444.90/x
  3. Step 3: Cross multiply
    22,435.74x = 33,621.90 × 12,444.90
  4. Step 4: Simplify right side
    22,435.74x = 418,421,183.31
  5. Step 5: Solve for x
    x = 418,421,183.31/22,435.74
  6. Step 6: Final answer
    x = 18,649.76

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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.