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Finding the Fourth Proportional to 63,622, 95,436.32 and 19,247.60

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Solution

The fourth proportional to 63,622, 95,436.32 and 19,247.60 is: 28,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,622 : 95,436.32 = 19,247.60 : x
  2. Step 2: Convert to fraction form
    63,622/95,436.32 = 19,247.60/x
  3. Step 3: Cross multiply
    63,622x = 95,436.32 × 19,247.60
  4. Step 4: Simplify right side
    63,622x = 1,836,920,112.83
  5. Step 5: Solve for x
    x = 1,836,920,112.83/63,622
  6. Step 6: Final answer
    x = 28,872.40

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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.