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Finding the Fourth Proportional to 19,963.44, 29,927.34 and 8,269.20

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Solution

The fourth proportional to 19,963.44, 29,927.34 and 8,269.20 is: 12,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,963.44 : 29,927.34 = 8,269.20 : x
  2. Step 2: Convert to fraction form
    19,963.44/29,927.34 = 8,269.20/x
  3. Step 3: Cross multiply
    19,963.44x = 29,927.34 × 8,269.20
  4. Step 4: Simplify right side
    19,963.44x = 247,475,159.93
  5. Step 5: Solve for x
    x = 247,475,159.93/19,963.44
  6. Step 6: Final answer
    x = 12,396.42

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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.