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Finding the Fourth Proportional to 57,638.52, 79,538.31 and 32,147.64

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Solution

The fourth proportional to 57,638.52, 79,538.31 and 32,147.64 is: 44,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,638.52 : 79,538.31 = 32,147.64 : x
  2. Step 2: Convert to fraction form
    57,638.52/79,538.31 = 32,147.64/x
  3. Step 3: Cross multiply
    57,638.52x = 79,538.31 × 32,147.64
  4. Step 4: Simplify right side
    57,638.52x = 2,556,968,956.09
  5. Step 5: Solve for x
    x = 2,556,968,956.09/57,638.52
  6. Step 6: Final answer
    x = 44,362.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.