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Finding the Fourth Proportional to 18,083.60, 27,125.40 and 15,896.60

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Solution

The fourth proportional to 18,083.60, 27,125.40 and 15,896.60 is: 23,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.60 : 27,125.40 = 15,896.60 : x
  2. Step 2: Convert to fraction form
    18,083.60/27,125.40 = 15,896.60/x
  3. Step 3: Cross multiply
    18,083.60x = 27,125.40 × 15,896.60
  4. Step 4: Simplify right side
    18,083.60x = 431,201,633.64
  5. Step 5: Solve for x
    x = 431,201,633.64/18,083.60
  6. Step 6: Final answer
    x = 23,844.90

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1.5x scale

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.