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Finding the Fourth Proportional to 18,251.25, 25,190.40 and 10,293.63

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Solution

The fourth proportional to 18,251.25, 25,190.40 and 10,293.63 is: 14,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.25 : 25,190.40 = 10,293.63 : x
  2. Step 2: Convert to fraction form
    18,251.25/25,190.40 = 10,293.63/x
  3. Step 3: Cross multiply
    18,251.25x = 25,190.40 × 10,293.63
  4. Step 4: Simplify right side
    18,251.25x = 259,300,657.15
  5. Step 5: Solve for x
    x = 259,300,657.15/18,251.25
  6. Step 6: Final answer
    x = 14,207.28

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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.