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Finding the Fourth Proportional to 6,893.52, 9,512.78 and 3,749.72

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Solution

The fourth proportional to 6,893.52, 9,512.78 and 3,749.72 is: 5,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.52 : 9,512.78 = 3,749.72 : x
  2. Step 2: Convert to fraction form
    6,893.52/9,512.78 = 3,749.72/x
  3. Step 3: Cross multiply
    6,893.52x = 9,512.78 × 3,749.72
  4. Step 4: Simplify right side
    6,893.52x = 35,670,261.42
  5. Step 5: Solve for x
    x = 35,670,261.42/6,893.52
  6. Step 6: Final answer
    x = 5,174.46

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1.5x scale

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.