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Finding the Fourth Proportional to 18,251.42, 27,293.72 and 13,270.52

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Solution

The fourth proportional to 18,251.42, 27,293.72 and 13,270.52 is: 19,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.42 : 27,293.72 = 13,270.52 : x
  2. Step 2: Convert to fraction form
    18,251.42/27,293.72 = 13,270.52/x
  3. Step 3: Cross multiply
    18,251.42x = 27,293.72 × 13,270.52
  4. Step 4: Simplify right side
    18,251.42x = 362,201,859.02
  5. Step 5: Solve for x
    x = 362,201,859.02/18,251.42
  6. Step 6: Final answer
    x = 19,845.14

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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.