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Finding the Fourth Proportional to 6,893.45, 9,512.96 and 3,749.63

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Solution

The fourth proportional to 6,893.45, 9,512.96 and 3,749.63 is: 5,174.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.45 : 9,512.96 = 3,749.63 : x
  2. Step 2: Convert to fraction form
    6,893.45/9,512.96 = 3,749.63/x
  3. Step 3: Cross multiply
    6,893.45x = 9,512.96 × 3,749.63
  4. Step 4: Simplify right side
    6,893.45x = 35,670,080.20
  5. Step 5: Solve for x
    x = 35,670,080.20/6,893.45
  6. Step 6: Final answer
    x = 5,174.49

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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.