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Finding the Fourth Proportional to 57,892.55, 86,837.20 and 18,452.03

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Solution

The fourth proportional to 57,892.55, 86,837.20 and 18,452.03 is: 27,677.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,892.55 : 86,837.20 = 18,452.03 : x
  2. Step 2: Convert to fraction form
    57,892.55/86,837.20 = 18,452.03/x
  3. Step 3: Cross multiply
    57,892.55x = 86,837.20 × 18,452.03
  4. Step 4: Simplify right side
    57,892.55x = 1,602,322,139.20
  5. Step 5: Solve for x
    x = 1,602,322,139.20/57,892.55
  6. Step 6: Final answer
    x = 27,677.52

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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.