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Finding the Fourth Proportional to 18,827.82, 28,230.78 and 10,057.94

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Solution

The fourth proportional to 18,827.82, 28,230.78 and 10,057.94 is: 15,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.82 : 28,230.78 = 10,057.94 : x
  2. Step 2: Convert to fraction form
    18,827.82/28,230.78 = 10,057.94/x
  3. Step 3: Cross multiply
    18,827.82x = 28,230.78 × 10,057.94
  4. Step 4: Simplify right side
    18,827.82x = 283,943,491.39
  5. Step 5: Solve for x
    x = 283,943,491.39/18,827.82
  6. Step 6: Final answer
    x = 15,081.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.