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Finding the Fourth Proportional to 27,805.58, 41,712.54 and 8,081.57

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Solution

The fourth proportional to 27,805.58, 41,712.54 and 8,081.57 is: 12,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.58 : 41,712.54 = 8,081.57 : x
  2. Step 2: Convert to fraction form
    27,805.58/41,712.54 = 8,081.57/x
  3. Step 3: Cross multiply
    27,805.58x = 41,712.54 × 8,081.57
  4. Step 4: Simplify right side
    27,805.58x = 337,102,954.05
  5. Step 5: Solve for x
    x = 337,102,954.05/27,805.58
  6. Step 6: Final answer
    x = 12,123.57

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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.