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Finding the Fourth Proportional to 27,715.92, 41,587.92 and 12,133.68

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Solution

The fourth proportional to 27,715.92, 41,587.92 and 12,133.68 is: 18,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,715.92 : 41,587.92 = 12,133.68 : x
  2. Step 2: Convert to fraction form
    27,715.92/41,587.92 = 12,133.68/x
  3. Step 3: Cross multiply
    27,715.92x = 41,587.92 × 12,133.68
  4. Step 4: Simplify right side
    27,715.92x = 504,614,513.15
  5. Step 5: Solve for x
    x = 504,614,513.15/27,715.92
  6. Step 6: Final answer
    x = 18,206.67

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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.