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Finding the Fourth Proportional to 27,151.95, 40,717.92 and 9,378.09

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Solution

The fourth proportional to 27,151.95, 40,717.92 and 9,378.09 is: 14,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.95 : 40,717.92 = 9,378.09 : x
  2. Step 2: Convert to fraction form
    27,151.95/40,717.92 = 9,378.09/x
  3. Step 3: Cross multiply
    27,151.95x = 40,717.92 × 9,378.09
  4. Step 4: Simplify right side
    27,151.95x = 381,856,318.37
  5. Step 5: Solve for x
    x = 381,856,318.37/27,151.95
  6. Step 6: Final answer
    x = 14,063.68

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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.