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Finding the Fourth Proportional to 31,635.36, 43,659 and 17,489.52

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Solution

The fourth proportional to 31,635.36, 43,659 and 17,489.52 is: 24,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,635.36 : 43,659 = 17,489.52 : x
  2. Step 2: Convert to fraction form
    31,635.36/43,659 = 17,489.52/x
  3. Step 3: Cross multiply
    31,635.36x = 43,659 × 17,489.52
  4. Step 4: Simplify right side
    31,635.36x = 763,574,953.68
  5. Step 5: Solve for x
    x = 763,574,953.68/31,635.36
  6. Step 6: Final answer
    x = 24,136.76

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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.