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Finding the Fourth Proportional to 9,912.42, 14,858.28 and 3,336.39

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Solution

The fourth proportional to 9,912.42, 14,858.28 and 3,336.39 is: 5,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.42 : 14,858.28 = 3,336.39 : x
  2. Step 2: Convert to fraction form
    9,912.42/14,858.28 = 3,336.39/x
  3. Step 3: Cross multiply
    9,912.42x = 14,858.28 × 3,336.39
  4. Step 4: Simplify right side
    9,912.42x = 49,573,016.81
  5. Step 5: Solve for x
    x = 49,573,016.81/9,912.42
  6. Step 6: Final answer
    x = 5,001.10

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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.