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Finding the Fourth Proportional to 18,588.17, 25,649.97 and 11,033.21

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Solution

The fourth proportional to 18,588.17, 25,649.97 and 11,033.21 is: 15,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.17 : 25,649.97 = 11,033.21 : x
  2. Step 2: Convert to fraction form
    18,588.17/25,649.97 = 11,033.21/x
  3. Step 3: Cross multiply
    18,588.17x = 25,649.97 × 11,033.21
  4. Step 4: Simplify right side
    18,588.17x = 283,001,505.50
  5. Step 5: Solve for x
    x = 283,001,505.50/18,588.17
  6. Step 6: Final answer
    x = 15,224.82

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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.