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Finding the Fourth Proportional to 31,706.94, 43,755.49 and 17,559.79

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Solution

The fourth proportional to 31,706.94, 43,755.49 and 17,559.79 is: 24,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.94 : 43,755.49 = 17,559.79 : x
  2. Step 2: Convert to fraction form
    31,706.94/43,755.49 = 17,559.79/x
  3. Step 3: Cross multiply
    31,706.94x = 43,755.49 × 17,559.79
  4. Step 4: Simplify right side
    31,706.94x = 768,337,128.31
  5. Step 5: Solve for x
    x = 768,337,128.31/31,706.94
  6. Step 6: Final answer
    x = 24,232.46

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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.