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Finding the Fourth Proportional to 27,111.46, 40,662.99 and 7,391.62

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Solution

The fourth proportional to 27,111.46, 40,662.99 and 7,391.62 is: 11,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.46 : 40,662.99 = 7,391.62 : x
  2. Step 2: Convert to fraction form
    27,111.46/40,662.99 = 7,391.62/x
  3. Step 3: Cross multiply
    27,111.46x = 40,662.99 × 7,391.62
  4. Step 4: Simplify right side
    27,111.46x = 300,565,370.14
  5. Step 5: Solve for x
    x = 300,565,370.14/27,111.46
  6. Step 6: Final answer
    x = 11,086.28

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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.