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Finding the Fourth Proportional to 33,391.50, 46,080.30 and 18,487.50

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Solution

The fourth proportional to 33,391.50, 46,080.30 and 18,487.50 is: 25,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,391.50 : 46,080.30 = 18,487.50 : x
  2. Step 2: Convert to fraction form
    33,391.50/46,080.30 = 18,487.50/x
  3. Step 3: Cross multiply
    33,391.50x = 46,080.30 × 18,487.50
  4. Step 4: Simplify right side
    33,391.50x = 851,909,546.25
  5. Step 5: Solve for x
    x = 851,909,546.25/33,391.50
  6. Step 6: Final answer
    x = 25,512.77

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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.