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Finding the Fourth Proportional to 28,610.35, 42,914.85 and 7,833.85

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Solution

The fourth proportional to 28,610.35, 42,914.85 and 7,833.85 is: 11,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.35 : 42,914.85 = 7,833.85 : x
  2. Step 2: Convert to fraction form
    28,610.35/42,914.85 = 7,833.85/x
  3. Step 3: Cross multiply
    28,610.35x = 42,914.85 × 7,833.85
  4. Step 4: Simplify right side
    28,610.35x = 336,188,497.67
  5. Step 5: Solve for x
    x = 336,188,497.67/28,610.35
  6. Step 6: Final answer
    x = 11,750.59

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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.