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Finding the Fourth Proportional to 27,928.46, 41,876.88 and 9,203.42

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Solution

The fourth proportional to 27,928.46, 41,876.88 and 9,203.42 is: 13,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.46 : 41,876.88 = 9,203.42 : x
  2. Step 2: Convert to fraction form
    27,928.46/41,876.88 = 9,203.42/x
  3. Step 3: Cross multiply
    27,928.46x = 41,876.88 × 9,203.42
  4. Step 4: Simplify right side
    27,928.46x = 385,410,514.93
  5. Step 5: Solve for x
    x = 385,410,514.93/27,928.46
  6. Step 6: Final answer
    x = 13,799.92

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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.