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Finding the Fourth Proportional to 19,954.95, 29,936.07 and 8,269.08

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Solution

The fourth proportional to 19,954.95, 29,936.07 and 8,269.08 is: 12,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.95 : 29,936.07 = 8,269.08 : x
  2. Step 2: Convert to fraction form
    19,954.95/29,936.07 = 8,269.08/x
  3. Step 3: Cross multiply
    19,954.95x = 29,936.07 × 8,269.08
  4. Step 4: Simplify right side
    19,954.95x = 247,543,757.72
  5. Step 5: Solve for x
    x = 247,543,757.72/19,954.95
  6. Step 6: Final answer
    x = 12,405.13

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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.