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Finding the Fourth Proportional to 33,425.76, 46,126.92 and 18,318

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Solution

The fourth proportional to 33,425.76, 46,126.92 and 18,318 is: 25,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,425.76 : 46,126.92 = 18,318 : x
  2. Step 2: Convert to fraction form
    33,425.76/46,126.92 = 18,318/x
  3. Step 3: Cross multiply
    33,425.76x = 46,126.92 × 18,318
  4. Step 4: Simplify right side
    33,425.76x = 844,952,920.56
  5. Step 5: Solve for x
    x = 844,952,920.56/33,425.76
  6. Step 6: Final answer
    x = 25,278.50

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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.