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Finding the Fourth Proportional to 31,777.26, 43,852.22 and 18,348.22

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Solution

The fourth proportional to 31,777.26, 43,852.22 and 18,348.22 is: 25,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.26 : 43,852.22 = 18,348.22 : x
  2. Step 2: Convert to fraction form
    31,777.26/43,852.22 = 18,348.22/x
  3. Step 3: Cross multiply
    31,777.26x = 43,852.22 × 18,348.22
  4. Step 4: Simplify right side
    31,777.26x = 804,609,960.79
  5. Step 5: Solve for x
    x = 804,609,960.79/31,777.26
  6. Step 6: Final answer
    x = 25,320.31

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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.