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Finding the Fourth Proportional to 27,285.80, 40,920.44 and 17,925.44

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Solution

The fourth proportional to 27,285.80, 40,920.44 and 17,925.44 is: 26,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,285.80 : 40,920.44 = 17,925.44 : x
  2. Step 2: Convert to fraction form
    27,285.80/40,920.44 = 17,925.44/x
  3. Step 3: Cross multiply
    27,285.80x = 40,920.44 × 17,925.44
  4. Step 4: Simplify right side
    27,285.80x = 733,516,891.99
  5. Step 5: Solve for x
    x = 733,516,891.99/27,285.80
  6. Step 6: Final answer
    x = 26,882.73

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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.