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Finding the Fourth Proportional to 31,751.56, 43,819.14 and 18,325.27

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Solution

The fourth proportional to 31,751.56, 43,819.14 and 18,325.27 is: 25,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.56 : 43,819.14 = 18,325.27 : x
  2. Step 2: Convert to fraction form
    31,751.56/43,819.14 = 18,325.27/x
  3. Step 3: Cross multiply
    31,751.56x = 43,819.14 × 18,325.27
  4. Step 4: Simplify right side
    31,751.56x = 802,997,571.67
  5. Step 5: Solve for x
    x = 802,997,571.67/31,751.56
  6. Step 6: Final answer
    x = 25,290.02

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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.