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Finding the Fourth Proportional to 33,385, 46,071.30 and 18,481

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Solution

The fourth proportional to 33,385, 46,071.30 and 18,481 is: 25,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,385 : 46,071.30 = 18,481 : x
  2. Step 2: Convert to fraction form
    33,385/46,071.30 = 18,481/x
  3. Step 3: Cross multiply
    33,385x = 46,071.30 × 18,481
  4. Step 4: Simplify right side
    33,385x = 851,443,695.30
  5. Step 5: Solve for x
    x = 851,443,695.30/33,385
  6. Step 6: Final answer
    x = 25,503.78

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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.