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Finding the Fourth Proportional to 31,755.97, 47,633.98 and 8,065.29

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Solution

The fourth proportional to 31,755.97, 47,633.98 and 8,065.29 is: 12,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.97 : 47,633.98 = 8,065.29 : x
  2. Step 2: Convert to fraction form
    31,755.97/47,633.98 = 8,065.29/x
  3. Step 3: Cross multiply
    31,755.97x = 47,633.98 × 8,065.29
  4. Step 4: Simplify right side
    31,755.97x = 384,181,862.55
  5. Step 5: Solve for x
    x = 384,181,862.55/31,755.97
  6. Step 6: Final answer
    x = 12,097.94

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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.