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Finding the Fourth Proportional to 18,151.21, 25,048.60 and 10,193.41

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Solution

The fourth proportional to 18,151.21, 25,048.60 and 10,193.41 is: 14,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.21 : 25,048.60 = 10,193.41 : x
  2. Step 2: Convert to fraction form
    18,151.21/25,048.60 = 10,193.41/x
  3. Step 3: Cross multiply
    18,151.21x = 25,048.60 × 10,193.41
  4. Step 4: Simplify right side
    18,151.21x = 255,330,649.73
  5. Step 5: Solve for x
    x = 255,330,649.73/18,151.21
  6. Step 6: Final answer
    x = 14,066.87

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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.