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Finding the Fourth Proportional to 18,265.83, 27,398.78 and 4,414.83

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Solution

The fourth proportional to 18,265.83, 27,398.78 and 4,414.83 is: 6,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.83 : 27,398.78 = 4,414.83 : x
  2. Step 2: Convert to fraction form
    18,265.83/27,398.78 = 4,414.83/x
  3. Step 3: Cross multiply
    18,265.83x = 27,398.78 × 4,414.83
  4. Step 4: Simplify right side
    18,265.83x = 120,960,955.91
  5. Step 5: Solve for x
    x = 120,960,955.91/18,265.83
  6. Step 6: Final answer
    x = 6,622.25

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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.