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Finding the Fourth Proportional to 33,485, 46,211.46 and 18,581

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Solution

The fourth proportional to 33,485, 46,211.46 and 18,581 is: 25,642.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,485 : 46,211.46 = 18,581 : x
  2. Step 2: Convert to fraction form
    33,485/46,211.46 = 18,581/x
  3. Step 3: Cross multiply
    33,485x = 46,211.46 × 18,581
  4. Step 4: Simplify right side
    33,485x = 858,655,138.26
  5. Step 5: Solve for x
    x = 858,655,138.26/33,485
  6. Step 6: Final answer
    x = 25,642.98

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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.