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Finding the Fourth Proportional to 18,249.71, 25,187.15 and 10,292.67

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Solution

The fourth proportional to 18,249.71, 25,187.15 and 10,292.67 is: 14,205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.71 : 25,187.15 = 10,292.67 : x
  2. Step 2: Convert to fraction form
    18,249.71/25,187.15 = 10,292.67/x
  3. Step 3: Cross multiply
    18,249.71x = 25,187.15 × 10,292.67
  4. Step 4: Simplify right side
    18,249.71x = 259,243,048.92
  5. Step 5: Solve for x
    x = 259,243,048.92/18,249.71
  6. Step 6: Final answer
    x = 14,205.33

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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.