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Finding the Fourth Proportional to 25,493.63, 35,190.69 and 21,894.13

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Solution

The fourth proportional to 25,493.63, 35,190.69 and 21,894.13 is: 30,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,493.63 : 35,190.69 = 21,894.13 : x
  2. Step 2: Convert to fraction form
    25,493.63/35,190.69 = 21,894.13/x
  3. Step 3: Cross multiply
    25,493.63x = 35,190.69 × 21,894.13
  4. Step 4: Simplify right side
    25,493.63x = 770,469,432.18
  5. Step 5: Solve for x
    x = 770,469,432.18/25,493.63
  6. Step 6: Final answer
    x = 30,222.04

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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.