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Finding the Fourth Proportional to 8,610.78, 11,882.16 and 4,833.42

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Solution

The fourth proportional to 8,610.78, 11,882.16 and 4,833.42 is: 6,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.78 : 11,882.16 = 4,833.42 : x
  2. Step 2: Convert to fraction form
    8,610.78/11,882.16 = 4,833.42/x
  3. Step 3: Cross multiply
    8,610.78x = 11,882.16 × 4,833.42
  4. Step 4: Simplify right side
    8,610.78x = 57,431,469.79
  5. Step 5: Solve for x
    x = 57,431,469.79/8,610.78
  6. Step 6: Final answer
    x = 6,669.72

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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.