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Finding the Fourth Proportional to 18,062.40, 27,057.60 and 15,897.60

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Solution

The fourth proportional to 18,062.40, 27,057.60 and 15,897.60 is: 23,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,062.40 : 27,057.60 = 15,897.60 : x
  2. Step 2: Convert to fraction form
    18,062.40/27,057.60 = 15,897.60/x
  3. Step 3: Cross multiply
    18,062.40x = 27,057.60 × 15,897.60
  4. Step 4: Simplify right side
    18,062.40x = 430,150,901.76
  5. Step 5: Solve for x
    x = 430,150,901.76/18,062.40
  6. Step 6: Final answer
    x = 23,814.71

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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.