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Finding the Fourth Proportional to 22,965.76, 34,449.92 and 7,172.97

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Solution

The fourth proportional to 22,965.76, 34,449.92 and 7,172.97 is: 10,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,965.76 : 34,449.92 = 7,172.97 : x
  2. Step 2: Convert to fraction form
    22,965.76/34,449.92 = 7,172.97/x
  3. Step 3: Cross multiply
    22,965.76x = 34,449.92 × 7,172.97
  4. Step 4: Simplify right side
    22,965.76x = 247,108,242.66
  5. Step 5: Solve for x
    x = 247,108,242.66/22,965.76
  6. Step 6: Final answer
    x = 10,759.86

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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.