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Finding the Fourth Proportional to 33,310.31, 49,965.47 and 8,686.31

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Solution

The fourth proportional to 33,310.31, 49,965.47 and 8,686.31 is: 13,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,310.31 : 49,965.47 = 8,686.31 : x
  2. Step 2: Convert to fraction form
    33,310.31/49,965.47 = 8,686.31/x
  3. Step 3: Cross multiply
    33,310.31x = 49,965.47 × 8,686.31
  4. Step 4: Simplify right side
    33,310.31x = 434,015,708.35
  5. Step 5: Solve for x
    x = 434,015,708.35/33,310.31
  6. Step 6: Final answer
    x = 13,029.47

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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.