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Finding the Fourth Proportional to 7,600.78, 10,489.00 and 4,243.73

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Solution

The fourth proportional to 7,600.78, 10,489.00 and 4,243.73 is: 5,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,600.78 : 10,489.00 = 4,243.73 : x
  2. Step 2: Convert to fraction form
    7,600.78/10,489.00 = 4,243.73/x
  3. Step 3: Cross multiply
    7,600.78x = 10,489.00 × 4,243.73
  4. Step 4: Simplify right side
    7,600.78x = 44,512,462.75
  5. Step 5: Solve for x
    x = 44,512,462.75/7,600.78
  6. Step 6: Final answer
    x = 5,856.31

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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.