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Finding the Fourth Proportional to 57,059.52, 85,556.88 and 47,757.48

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Solution

The fourth proportional to 57,059.52, 85,556.88 and 47,757.48 is: 71,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,059.52 : 85,556.88 = 47,757.48 : x
  2. Step 2: Convert to fraction form
    57,059.52/85,556.88 = 47,757.48/x
  3. Step 3: Cross multiply
    57,059.52x = 85,556.88 × 47,757.48
  4. Step 4: Simplify right side
    57,059.52x = 4,085,980,985.46
  5. Step 5: Solve for x
    x = 4,085,980,985.46/57,059.52
  6. Step 6: Final answer
    x = 71,609.10

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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.