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Finding the Fourth Proportional to 19,374.94, 26,737.42 and 10,991.44

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Solution

The fourth proportional to 19,374.94, 26,737.42 and 10,991.44 is: 15,168.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.94 : 26,737.42 = 10,991.44 : x
  2. Step 2: Convert to fraction form
    19,374.94/26,737.42 = 10,991.44/x
  3. Step 3: Cross multiply
    19,374.94x = 26,737.42 × 10,991.44
  4. Step 4: Simplify right side
    19,374.94x = 293,882,747.68
  5. Step 5: Solve for x
    x = 293,882,747.68/19,374.94
  6. Step 6: Final answer
    x = 15,168.19

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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.