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Finding the Fourth Proportional to 54,315.70, 81,481.65 and 19,252.60

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Solution

The fourth proportional to 54,315.70, 81,481.65 and 19,252.60 is: 28,881.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,315.70 : 81,481.65 = 19,252.60 : x
  2. Step 2: Convert to fraction form
    54,315.70/81,481.65 = 19,252.60/x
  3. Step 3: Cross multiply
    54,315.70x = 81,481.65 × 19,252.60
  4. Step 4: Simplify right side
    54,315.70x = 1,568,733,614.79
  5. Step 5: Solve for x
    x = 1,568,733,614.79/54,315.70
  6. Step 6: Final answer
    x = 28,881.77

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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.