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Finding the Fourth Proportional to 54,099.81, 81,149.72 and 35,497.55

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Solution

The fourth proportional to 54,099.81, 81,149.72 and 35,497.55 is: 53,246.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,099.81 : 81,149.72 = 35,497.55 : x
  2. Step 2: Convert to fraction form
    54,099.81/81,149.72 = 35,497.55/x
  3. Step 3: Cross multiply
    54,099.81x = 81,149.72 × 35,497.55
  4. Step 4: Simplify right side
    54,099.81x = 2,880,616,268.57
  5. Step 5: Solve for x
    x = 2,880,616,268.57/54,099.81
  6. Step 6: Final answer
    x = 53,246.33

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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.