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Finding the Fourth Proportional to 16,435.44, 22,679.28 and 9,361.44

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Solution

The fourth proportional to 16,435.44, 22,679.28 and 9,361.44 is: 12,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,435.44 : 22,679.28 = 9,361.44 : x
  2. Step 2: Convert to fraction form
    16,435.44/22,679.28 = 9,361.44/x
  3. Step 3: Cross multiply
    16,435.44x = 22,679.28 × 9,361.44
  4. Step 4: Simplify right side
    16,435.44x = 212,310,718.96
  5. Step 5: Solve for x
    x = 212,310,718.96/16,435.44
  6. Step 6: Final answer
    x = 12,917.86

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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.