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Finding the Fourth Proportional to 31,891.96, 44,005.93 and 18,460.59

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Solution

The fourth proportional to 31,891.96, 44,005.93 and 18,460.59 is: 25,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,891.96 : 44,005.93 = 18,460.59 : x
  2. Step 2: Convert to fraction form
    31,891.96/44,005.93 = 18,460.59/x
  3. Step 3: Cross multiply
    31,891.96x = 44,005.93 × 18,460.59
  4. Step 4: Simplify right side
    31,891.96x = 812,375,431.30
  5. Step 5: Solve for x
    x = 812,375,431.30/31,891.96
  6. Step 6: Final answer
    x = 25,472.73

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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.