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Finding the Fourth Proportional to 53,687.72, 80,470.81 and 27,336.80

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Solution

The fourth proportional to 53,687.72, 80,470.81 and 27,336.80 is: 40,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,687.72 : 80,470.81 = 27,336.80 : x
  2. Step 2: Convert to fraction form
    53,687.72/80,470.81 = 27,336.80/x
  3. Step 3: Cross multiply
    53,687.72x = 80,470.81 × 27,336.80
  4. Step 4: Simplify right side
    53,687.72x = 2,199,814,438.81
  5. Step 5: Solve for x
    x = 2,199,814,438.81/53,687.72
  6. Step 6: Final answer
    x = 40,974.26

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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.