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Finding the Fourth Proportional to 33,390, 46,081.08 and 18,488.88

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Solution

The fourth proportional to 33,390, 46,081.08 and 18,488.88 is: 25,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,390 : 46,081.08 = 18,488.88 : x
  2. Step 2: Convert to fraction form
    33,390/46,081.08 = 18,488.88/x
  3. Step 3: Cross multiply
    33,390x = 46,081.08 × 18,488.88
  4. Step 4: Simplify right side
    33,390x = 851,987,558.39
  5. Step 5: Solve for x
    x = 851,987,558.39/33,390
  6. Step 6: Final answer
    x = 25,516.25

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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.