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Finding the Fourth Proportional to 11,837.70, 17,760.60 and 5,268.60

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Solution

The fourth proportional to 11,837.70, 17,760.60 and 5,268.60 is: 7,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.70 : 17,760.60 = 5,268.60 : x
  2. Step 2: Convert to fraction form
    11,837.70/17,760.60 = 5,268.60/x
  3. Step 3: Cross multiply
    11,837.70x = 17,760.60 × 5,268.60
  4. Step 4: Simplify right side
    11,837.70x = 93,573,497.16
  5. Step 5: Solve for x
    x = 93,573,497.16/11,837.70
  6. Step 6: Final answer
    x = 7,904.70

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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.