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Finding the Fourth Proportional to 31,198.39, 43,053.84 and 17,051.20

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Solution

The fourth proportional to 31,198.39, 43,053.84 and 17,051.20 is: 23,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,198.39 : 43,053.84 = 17,051.20 : x
  2. Step 2: Convert to fraction form
    31,198.39/43,053.84 = 17,051.20/x
  3. Step 3: Cross multiply
    31,198.39x = 43,053.84 × 17,051.20
  4. Step 4: Simplify right side
    31,198.39x = 734,119,636.61
  5. Step 5: Solve for x
    x = 734,119,636.61/31,198.39
  6. Step 6: Final answer
    x = 23,530.69

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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.