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Finding the Fourth Proportional to 18,251.81, 25,187.43 and 10,293.99

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Solution

The fourth proportional to 18,251.81, 25,187.43 and 10,293.99 is: 14,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.81 : 25,187.43 = 10,293.99 : x
  2. Step 2: Convert to fraction form
    18,251.81/25,187.43 = 10,293.99/x
  3. Step 3: Cross multiply
    18,251.81x = 25,187.43 × 10,293.99
  4. Step 4: Simplify right side
    18,251.81x = 259,279,026.61
  5. Step 5: Solve for x
    x = 259,279,026.61/18,251.81
  6. Step 6: Final answer
    x = 14,205.66

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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.