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Finding the Fourth Proportional to 83,383.91, 125,088.82 and 27,992.87

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Solution

The fourth proportional to 83,383.91, 125,088.82 and 27,992.87 is: 41,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,383.91 : 125,088.82 = 27,992.87 : x
  2. Step 2: Convert to fraction form
    83,383.91/125,088.82 = 27,992.87/x
  3. Step 3: Cross multiply
    83,383.91x = 125,088.82 × 27,992.87
  4. Step 4: Simplify right side
    83,383.91x = 3,501,595,076.71
  5. Step 5: Solve for x
    x = 3,501,595,076.71/83,383.91
  6. Step 6: Final answer
    x = 41,993.65

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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.