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Finding the Fourth Proportional to 9,936, 14,869.44 and 9,367.92

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Solution

The fourth proportional to 9,936, 14,869.44 and 9,367.92 is: 14,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936 : 14,869.44 = 9,367.92 : x
  2. Step 2: Convert to fraction form
    9,936/14,869.44 = 9,367.92/x
  3. Step 3: Cross multiply
    9,936x = 14,869.44 × 9,367.92
  4. Step 4: Simplify right side
    9,936x = 139,295,724.36
  5. Step 5: Solve for x
    x = 139,295,724.36/9,936
  6. Step 6: Final answer
    x = 14,019.30

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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.