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Finding the Fourth Proportional to 27,160.71, 40,741.92 and 8,440.85

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Solution

The fourth proportional to 27,160.71, 40,741.92 and 8,440.85 is: 12,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,160.71 : 40,741.92 = 8,440.85 : x
  2. Step 2: Convert to fraction form
    27,160.71/40,741.92 = 8,440.85/x
  3. Step 3: Cross multiply
    27,160.71x = 40,741.92 × 8,440.85
  4. Step 4: Simplify right side
    27,160.71x = 343,896,231.72
  5. Step 5: Solve for x
    x = 343,896,231.72/27,160.71
  6. Step 6: Final answer
    x = 12,661.53

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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.