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Finding the Fourth Proportional to 18,170.22, 25,076.99 and 10,104.69

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Solution

The fourth proportional to 18,170.22, 25,076.99 and 10,104.69 is: 13,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.22 : 25,076.99 = 10,104.69 : x
  2. Step 2: Convert to fraction form
    18,170.22/25,076.99 = 10,104.69/x
  3. Step 3: Cross multiply
    18,170.22x = 25,076.99 × 10,104.69
  4. Step 4: Simplify right side
    18,170.22x = 253,395,159.56
  5. Step 5: Solve for x
    x = 253,395,159.56/18,170.22
  6. Step 6: Final answer
    x = 13,945.63

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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.